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    1. #1
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      Jan 2011
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      How to detect usb devices using Ubuntu 8.04 LiveCD?

      I'm trying to detect an external HDD drive, but I don't know how. My PC has a total of 6 USB ports, they're all being used, and the Computer File Browser lists only 4 USB ports and I can't open them. The ports could be detected in Windows Vista, except I've not tried the new HDD enclosure, but the PC's HDD crashed.

      I've ran the command:
      Code:
      dmesg
      without the usb enclosure:

      Code:
      [ 1798.842955] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1798.842964] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1798.842973] Info fld=0x29980
      [ 1798.842977] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1798.842987] end_request: I/O error, dev sr0, sector 681472
      [ 1798.842997] Buffer I/O error on device sr0, logical block 170368
      [ 1798.843005] Buffer I/O error on device sr0, logical block 170369
      [ 1800.212376] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1800.212385] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1800.212393] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1800.212402] Info fld=0x29981
      [ 1800.212406] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1800.212416] end_request: I/O error, dev sr0, sector 681476
      [ 1800.212424] Buffer I/O error on device sr0, logical block 170369
      [ 1803.115281] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1803.115290] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1803.115298] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1803.115308] Info fld=0x29992
      [ 1803.115312] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1803.115322] end_request: I/O error, dev sr0, sector 681544
      [ 1803.115332] Buffer I/O error on device sr0, logical block 170386
      [ 1803.115340] Buffer I/O error on device sr0, logical block 170387
      [ 1805.619786] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1805.619796] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1805.619804] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1805.619814] Info fld=0x29992
      [ 1805.619818] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1805.619828] end_request: I/O error, dev sr0, sector 681544
      [ 1805.619838] Buffer I/O error on device sr0, logical block 170386
      [ 1805.619847] Buffer I/O error on device sr0, logical block 170387
      [ 1807.896780] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1807.896788] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1807.896795] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1807.896805] Info fld=0x29992
      [ 1807.896809] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1807.896819] end_request: I/O error, dev sr0, sector 681544
      [ 1807.896828] Buffer I/O error on device sr0, logical block 170386
      [ 1807.896836] Buffer I/O error on device sr0, logical block 170387
      [ 1810.572146] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1810.572154] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1810.572162] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1810.572172] Info fld=0x29992
      [ 1810.572176] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1810.572185] end_request: I/O error, dev sr0, sector 681544
      [ 1810.572195] Buffer I/O error on device sr0, logical block 170386
      [ 1810.572203] Buffer I/O error on device sr0, logical block 170387
      [ 1810.701512] SQUASHFS error: squashfs_read_data failed to read block 0x14a63fa5
      [ 1810.701523] SQUASHFS error: Unable to read data cache entry [14a63fa5]
      [ 1810.701529] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1810.701544] SQUASHFS error: Unable to read data cache entry [14a63fa5]
      [ 1810.701549] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1810.701560] SQUASHFS error: Unable to read data cache entry [14a63fa5]
      [ 1810.701565] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1810.701576] SQUASHFS error: Unable to read data cache entry [14a63fa5]
      [ 1810.701581] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1810.701592] SQUASHFS error: Unable to read data cache entry [14a63fa5]
      [ 1810.701598] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1812.564034] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1812.564042] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1812.564051] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1812.564060] Info fld=0x299c5
      [ 1812.564065] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1812.564074] end_request: I/O error, dev sr0, sector 681748
      [ 1812.564083] Buffer I/O error on device sr0, logical block 170437
      [ 1815.240113] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1815.240122] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1815.240130] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1815.240139] Info fld=0x299c5
      [ 1815.240144] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1815.240153] end_request: I/O error, dev sr0, sector 681748
      [ 1815.240163] Buffer I/O error on device sr0, logical block 170437
      [ 1817.574617] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1817.574625] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1817.574633] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1817.574643] Info fld=0x299c5
      [ 1817.574647] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1817.574656] end_request: I/O error, dev sr0, sector 681748
      [ 1817.574666] Buffer I/O error on device sr0, logical block 170437
      [ 1819.282753] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1819.282761] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1819.282769] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1819.282778] Info fld=0x299c5
      [ 1819.282782] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1819.282791] end_request: I/O error, dev sr0, sector 681748
      [ 1819.282801] Buffer I/O error on device sr0, logical block 170437
      [ 1820.990493] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1820.990501] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1820.990510] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1820.990519] Info fld=0x299d6
      [ 1820.990523] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1820.990533] end_request: I/O error, dev sr0, sector 681816
      [ 1820.990543] Buffer I/O error on device sr0, logical block 170454
      [ 1820.990551] Buffer I/O error on device sr0, logical block 170455
      [ 1823.270246] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1823.270253] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1823.270261] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1823.270270] Info fld=0x29a1b
      [ 1823.270274] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1823.270283] end_request: I/O error, dev sr0, sector 682092
      [ 1823.270291] Buffer I/O error on device sr0, logical block 170523
      [ 1823.270298] Buffer I/O error on device sr0, logical block 170524
      [ 1823.270305] Buffer I/O error on device sr0, logical block 170525
      [ 1823.270312] Buffer I/O error on device sr0, logical block 170526
      [ 1823.270319] Buffer I/O error on device sr0, logical block 170527
      [ 1823.270325] Buffer I/O error on device sr0, logical block 170528
      [ 1824.862618] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1824.862626] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1824.862634] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1824.862643] Info fld=0x299d6
      [ 1824.862647] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1824.862656] end_request: I/O error, dev sr0, sector 681816
      [ 1824.862665] __ratelimit: 1 callbacks suppressed
      [ 1824.862671] Buffer I/O error on device sr0, logical block 170454
      [ 1824.862679] Buffer I/O error on device sr0, logical block 170455
      [ 1826.343078] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1826.343086] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1826.343094] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1826.343103] Info fld=0x299d6
      [ 1826.343106] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1826.343116] end_request: I/O error, dev sr0, sector 681816
      [ 1826.343125] Buffer I/O error on device sr0, logical block 170454
      [ 1826.343133] Buffer I/O error on device sr0, logical block 170455
      [ 1827.823470] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1827.823477] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1827.823485] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1827.823494] Info fld=0x299d6
      [ 1827.823497] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1827.823506] end_request: I/O error, dev sr0, sector 681816
      [ 1827.823513] Buffer I/O error on device sr0, logical block 170454
      [ 1827.823520] Buffer I/O error on device sr0, logical block 170455
      [ 1828.029750] SQUASHFS error: squashfs_read_data failed to read block 0x14a8691b
      [ 1828.029758] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029763] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029776] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029781] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029793] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029798] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029809] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029814] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029824] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029830] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1833.183107] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1833.183116] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1833.183125] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1833.183135] Info fld=0x29e63
      [ 1833.183138] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1833.183149] end_request: I/O error, dev sr0, sector 686476
      [ 1833.183158] Buffer I/O error on device sr0, logical block 171619
      [ 1833.183165] Buffer I/O error on device sr0, logical block 171620
      [ 1833.183171] Buffer I/O error on device sr0, logical block 171621
      [ 1833.183178] Buffer I/O error on device sr0, logical block 171622
      [ 1833.183186] Buffer I/O error on device sr0, logical block 171623
      [ 1833.183192] Buffer I/O error on device sr0, logical block 171624
      [ 1833.183198] Buffer I/O error on device sr0, logical block 171625
      [ 1833.183205] Buffer I/O error on device sr0, logical block 171626
      [ 1833.183211] Buffer I/O error on device sr0, logical block 171627
      [ 1833.183217] Buffer I/O error on device sr0, logical block 171628
      [ 1833.809398] SQUASHFS error: squashfs_read_data failed to read block 0x14ca799e
      [ 1833.809410] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809416] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809430] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809435] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809448] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809453] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809464] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809469] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809481] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809486] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809964] SQUASHFS error: squashfs_read_data failed to read block 0x14cb458c
      [ 1833.809970] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.809976] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.809987] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.809993] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810004] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810010] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810022] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810027] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810038] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810043] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1836.789006] SQUASHFS error: squashfs_read_data failed to read block 0x14aa2039
      [ 1836.789016] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789022] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789035] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789040] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789062] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789067] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789077] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789082] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789094] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789099] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1838.374737] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1838.374746] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1838.374755] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1838.374765] Info fld=0x29a4e
      [ 1838.374769] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1838.374779] end_request: I/O error, dev sr0, sector 682296
      [ 1838.374787] __ratelimit: 21 callbacks suppressed
      [ 1838.374793] Buffer I/O error on device sr0, logical block 170574
      [ 1838.374800] Buffer I/O error on device sr0, logical block 170575
      [ 1839.797988] SQUASHFS error: squashfs_read_data failed to read block 0x14c1c67c
      [ 1839.798001] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798009] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798027] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798033] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798044] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798050] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798059] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798065] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798076] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798082] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1841.627526] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1841.627536] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1841.627544] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1841.627554] Info fld=0x29d40
      [ 1841.627558] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1841.627569] end_request: I/O error, dev sr0, sector 685312
      [ 1841.627579] Buffer I/O error on device sr0, logical block 171328
      [ 1841.627587] Buffer I/O error on device sr0, logical block 171329
      [ 1963.546354] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1963.546364] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1963.546372] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1963.546382] Info fld=0x28eb5
      [ 1963.546386] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1963.546397] end_request: I/O error, dev sr0, sector 670420
      [ 1963.546406] Buffer I/O error on device sr0, logical block 167605
      [ 1963.546413] Buffer I/O error on device sr0, logical block 167606
      [ 1963.546420] Buffer I/O error on device sr0, logical block 167607
      [ 1965.357624] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1965.357633] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1965.357642] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1965.357652] Info fld=0x28ec6
      [ 1965.357656] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1965.357666] end_request: I/O error, dev sr0, sector 670488
      [ 1965.357675] Buffer I/O error on device sr0, logical block 167622
      [ 1965.357682] Buffer I/O error on device sr0, logical block 167623
      [ 1966.092536] SQUASHFS error: squashfs_read_data failed to read block 0x144db49e
      [ 1966.092549] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092556] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092579] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092584] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092596] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092601] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092612] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092617] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092630] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092635] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.999276] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1966.999285] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1966.999294] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1966.999303] Info fld=0x28ec6
      [ 1966.999308] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1966.999318] end_request: I/O error, dev sr0, sector 670488
      [ 1966.999328] Buffer I/O error on device sr0, logical block 167622
      [ 1966.999337] Buffer I/O error on device sr0, logical block 167623
      [ 1966.999347] Buffer I/O error on device sr0, logical block 167624
      [ 1966.999354] Buffer I/O error on device sr0, logical block 167625
      [ 1966.999361] Buffer I/O error on device sr0, logical block 167626
      [ 1967.905835] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1967.905845] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1967.905853] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1967.905863] Info fld=0x28ec6
      [ 1967.905867] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1967.905877] end_request: I/O error, dev sr0, sector 670488
      [ 1968.810585] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1968.810591] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1968.810596] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1968.810601] Info fld=0x28ec6
      [ 1968.810603] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1968.810609] end_request: I/O error, dev sr0, sector 670488
      [ 1968.810615] __ratelimit: 31 callbacks suppressed
      [ 1968.810618] Buffer I/O error on device sr0, logical block 167622
      [ 1968.810623] Buffer I/O error on device sr0, logical block 167623
      [ 1969.716301] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1969.716310] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1969.716319] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1969.716328] Info fld=0x28ec6
      [ 1969.716332] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1969.716342] end_request: I/O error, dev sr0, sector 670488
      [ 1969.716353] Buffer I/O error on device sr0, logical block 167622
      [ 1969.716361] Buffer I/O error on device sr0, logical block 167623
      [ 1975.712868] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1975.712877] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1975.712886] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1975.712896] Info fld=0x28ec8
      [ 1975.712900] sr 4:0:0:0: [sr0] Add. Sense: No seek complete
      [ 1975.712909] end_request: I/O error, dev sr0, sector 670496
      [ 1975.712919] Buffer I/O error on device sr0, logical block 167624
      [ 1975.712928] Buffer I/O error on device sr0, logical block 167625
      [ 1978.603383] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1978.603391] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1978.603400] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1978.603410] Info fld=0x28ef9
      [ 1978.603414] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1978.603424] end_request: I/O error, dev sr0, sector 670692
      [ 1978.603433] Buffer I/O error on device sr0, logical block 167673
      [ 1978.603440] Buffer I/O error on device sr0, logical block 167674
      [ 1978.603446] Buffer I/O error on device sr0, logical block 167675
      [ 1978.603452] Buffer I/O error on device sr0, logical block 167676
      [ 1978.603459] Buffer I/O error on device sr0, logical block 167677
      [ 1978.603465] Buffer I/O error on device sr0, logical block 167678
      [ 1978.603472] Buffer I/O error on device sr0, logical block 167679
      [ 1978.603478] Buffer I/O error on device sr0, logical block 167680
      [ 2002.446123] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2002.446133] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2002.446142] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2002.446152] Info fld=0x31220
      [ 2002.446155] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2002.446166] end_request: I/O error, dev sr0, sector 804992
      [ 2002.446174] __ratelimit: 39 callbacks suppressed
      [ 2002.446180] Buffer I/O error on device sr0, logical block 201248
      [ 2002.446187] Buffer I/O error on device sr0, logical block 201249
      [ 2002.446193] Buffer I/O error on device sr0, logical block 201250
      [ 2002.446200] Buffer I/O error on device sr0, logical block 201251
      [ 2002.446206] Buffer I/O error on device sr0, logical block 201252
      [ 2002.446213] Buffer I/O error on device sr0, logical block 201253
      [ 2002.446220] Buffer I/O error on device sr0, logical block 201254
      [ 2002.446226] Buffer I/O error on device sr0, logical block 201255
      [ 2002.446232] Buffer I/O error on device sr0, logical block 201256
      [ 2002.446238] Buffer I/O error on device sr0, logical block 201257
      [ 2004.315641] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2004.315650] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2004.315659] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2004.315669] Info fld=0x31220
      [ 2004.315673] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2004.315683] end_request: I/O error, dev sr0, sector 804992
      [ 2004.315835] SQUASHFS error: squashfs_read_data failed to read block 0x186890b6
      [ 2004.315843] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315849] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315873] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315879] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315890] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315895] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315906] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315911] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315928] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315933] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315947] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315952] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315964] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315969] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315980] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315985] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315997] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316002] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316013] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316018] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316030] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316035] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316045] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316051] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316061] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316067] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316078] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316083] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316094] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316099] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316110] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316115] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316126] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316131] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316142] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316147] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316161] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316166] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316177] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316182] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316193] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316198] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316210] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316215] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316226] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316231] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316242] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316247] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316258] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316264] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316276] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316347] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316360] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316365] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316377] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316382] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316393] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316399] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316411] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316416] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316427] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316432] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316443] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316448] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316461] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316466] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2006.245533] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2006.245542] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2006.245551] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2006.245561] Info fld=0x31220
      [ 2006.245565] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2006.245575] end_request: I/O error, dev sr0, sector 804992
      [ 2006.984744] SQUASHFS error: squashfs_read_data failed to read block 0x14bb6a94
      [ 2006.984758] SQUASHFS error: Unable to read data cache entry [14bb6a94]
      [ 2006.984765] SQUASHFS error: Unable to read page, block 14bb6a94, size 59d9
      [ 2006.984805] Recursive core dump detected, aborting
      [ 2006.994179] SQUASHFS error: squashfs_read_data failed to read block 0x144db49e
      [ 2006.994191] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 2006.994197] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 2008.898461] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2008.898471] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2008.898479] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2008.898489] Info fld=0x31244
      [ 2008.898493] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2008.898503] end_request: I/O error, dev sr0, sector 805136
      [ 2008.898513] __ratelimit: 30 callbacks suppressed
      [ 2008.898519] Buffer I/O error on device sr0, logical block 201284
      [ 2008.898528] Buffer I/O error on device sr0, logical block 201285
      [ 2008.898535] Buffer I/O error on device sr0, logical block 201286
      [ 2008.898541] Buffer I/O error on device sr0, logical block 201287
      [ 2008.898548] Buffer I/O error on device sr0, logical block 201288
      [ 2008.898554] Buffer I/O error on device sr0, logical block 201289
      [ 2008.898561] Buffer I/O error on device sr0, logical block 201290
      [ 2008.898567] Buffer I/O error on device sr0, logical block 201291
      [ 2008.898573] Buffer I/O error on device sr0, logical block 201292
      [ 2008.898579] Buffer I/O error on device sr0, logical block 201293
      [ 2015.275906] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2015.275915] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2015.275924] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2015.275933] Info fld=0x28ec6
      [ 2015.275938] sr 4:0:0:0: [sr0] Add. Sense: No seek complete
      [ 2015.275947] end_request: I/O error, dev sr0, sector 670488
      [ 2015.275956] __ratelimit: 54 callbacks suppressed
      [ 2015.275962] Buffer I/O error on device sr0, logical block 167622
      [ 2015.275972] Buffer I/O error on device sr0, logical block 167623
      [ 2016.560290] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2016.560299] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2016.560308] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2016.560319] Info fld=0x28ec6
      [ 2016.560323] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2016.560333] end_request: I/O error, dev sr0, sector 670488
      [ 2016.560344] Buffer I/O error on device sr0, logical block 167622
      [ 2016.560353] Buffer I/O error on device sr0, logical block 167623
      [ 2017.466006] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2017.466016] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2017.466024] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2017.466034] Info fld=0x28ec6
      [ 2017.466038] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2017.466048] end_request: I/O error, dev sr0, sector 670488
      [ 2017.466058] Buffer I/O error on device sr0, logical block 167622
      [ 2017.466067] Buffer I/O error on device sr0, logical block 167623
      [ 2018.371747] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2018.371756] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2018.371764] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2018.371774] Info fld=0x28ec6
      [ 2018.371778] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2018.371788] end_request: I/O error, dev sr0, sector 670488
      [ 2018.371799] Buffer I/O error on device sr0, logical block 167622
      [ 2018.371808] Buffer I/O error on device sr0, logical block 167623
      [18826.872031] usb 2-6: new low speed USB device using ohci_hcd and address 10
      [18826.944048] hub 2-0:1.0: unable to enumerate USB device on port 6
      [18828.308041] usb 2-6: new low speed USB device using ohci_hcd and address 11
      [18828.535334] usb 2-6: configuration #1 chosen from 1 choice
      [18828.540051] usb 2-6: can't set config #1, error -62
      [18828.540153] usb 2-6: USB disconnect, address 11
      [18833.560032] usb 2-5: new low speed USB device using ohci_hcd and address 12
      [18833.784336] usb 2-5: configuration #1 chosen from 1 choice
      [18833.804777] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input16
      [18833.804937] generic-usb 0003:05A4:9866.000D: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [18833.821057] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input17
      [18833.821242] generic-usb 0003:05A4:9866.000E: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [19020.900038] usb 2-5: USB disconnect, address 12
      [19024.760029] usb 2-5: new low speed USB device using ohci_hcd and address 13
      [19024.820529] hub 2-0:1.0: unable to enumerate USB device on port 5
      [19025.608021] usb 2-5: new low speed USB device using ohci_hcd and address 14
      [19025.788022] usb 2-5: device descriptor read/64, error -62
      [19026.072021] usb 2-5: device descriptor read/64, error -62
      [19026.352024] usb 2-5: new low speed USB device using ohci_hcd and address 15
      [19026.444032] hub 2-0:1.0: unable to enumerate USB device on port 5
      [19528.240526] usb 2-5: new low speed USB device using ohci_hcd and address 16
      [19528.464333] usb 2-5: configuration #1 chosen from 1 choice
      [19528.479906] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input18
      [19528.480057] generic-usb 0003:05A4:9866.000F: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [19528.491730] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input19
      [19528.491913] generic-usb 0003:05A4:9866.0010: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [19682.587516] usb 2-5: USB disconnect, address 16
      [85071.476033] usb 2-5: new low speed USB device using ohci_hcd and address 17
      [85071.701340] usb 2-5: configuration #1 chosen from 1 choice
      [85071.719767] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input20
      [85071.719925] generic-usb 0003:05A4:9866.0011: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [85071.731851] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input21
      [85071.732028] generic-usb 0003:05A4:9866.0012: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [88720.857899] usb 2-5: USB disconnect, address 17
      and with the USB enclosure:

      Code:
      [ 1810.701598] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [ 1812.564034] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1812.564042] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1812.564051] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1812.564060] Info fld=0x299c5
      [ 1812.564065] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1812.564074] end_request: I/O error, dev sr0, sector 681748
      [ 1812.564083] Buffer I/O error on device sr0, logical block 170437
      [ 1815.240113] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1815.240122] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1815.240130] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1815.240139] Info fld=0x299c5
      [ 1815.240144] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1815.240153] end_request: I/O error, dev sr0, sector 681748
      [ 1815.240163] Buffer I/O error on device sr0, logical block 170437
      [ 1817.574617] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1817.574625] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1817.574633] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1817.574643] Info fld=0x299c5
      [ 1817.574647] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1817.574656] end_request: I/O error, dev sr0, sector 681748
      [ 1817.574666] Buffer I/O error on device sr0, logical block 170437
      [ 1819.282753] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1819.282761] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1819.282769] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1819.282778] Info fld=0x299c5
      [ 1819.282782] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1819.282791] end_request: I/O error, dev sr0, sector 681748
      [ 1819.282801] Buffer I/O error on device sr0, logical block 170437
      [ 1820.990493] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1820.990501] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1820.990510] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1820.990519] Info fld=0x299d6
      [ 1820.990523] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1820.990533] end_request: I/O error, dev sr0, sector 681816
      [ 1820.990543] Buffer I/O error on device sr0, logical block 170454
      [ 1820.990551] Buffer I/O error on device sr0, logical block 170455
      [ 1823.270246] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1823.270253] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1823.270261] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1823.270270] Info fld=0x29a1b
      [ 1823.270274] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1823.270283] end_request: I/O error, dev sr0, sector 682092
      [ 1823.270291] Buffer I/O error on device sr0, logical block 170523
      [ 1823.270298] Buffer I/O error on device sr0, logical block 170524
      [ 1823.270305] Buffer I/O error on device sr0, logical block 170525
      [ 1823.270312] Buffer I/O error on device sr0, logical block 170526
      [ 1823.270319] Buffer I/O error on device sr0, logical block 170527
      [ 1823.270325] Buffer I/O error on device sr0, logical block 170528
      [ 1824.862618] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1824.862626] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1824.862634] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1824.862643] Info fld=0x299d6
      [ 1824.862647] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1824.862656] end_request: I/O error, dev sr0, sector 681816
      [ 1824.862665] __ratelimit: 1 callbacks suppressed
      [ 1824.862671] Buffer I/O error on device sr0, logical block 170454
      [ 1824.862679] Buffer I/O error on device sr0, logical block 170455
      [ 1826.343078] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1826.343086] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1826.343094] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1826.343103] Info fld=0x299d6
      [ 1826.343106] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1826.343116] end_request: I/O error, dev sr0, sector 681816
      [ 1826.343125] Buffer I/O error on device sr0, logical block 170454
      [ 1826.343133] Buffer I/O error on device sr0, logical block 170455
      [ 1827.823470] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1827.823477] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1827.823485] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1827.823494] Info fld=0x299d6
      [ 1827.823497] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1827.823506] end_request: I/O error, dev sr0, sector 681816
      [ 1827.823513] Buffer I/O error on device sr0, logical block 170454
      [ 1827.823520] Buffer I/O error on device sr0, logical block 170455
      [ 1828.029750] SQUASHFS error: squashfs_read_data failed to read block 0x14a8691b
      [ 1828.029758] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029763] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029776] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029781] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029793] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029798] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029809] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029814] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1828.029824] SQUASHFS error: Unable to read data cache entry [14a8691b]
      [ 1828.029830] SQUASHFS error: Unable to read page, block 14a8691b, size d5ea
      [ 1833.183107] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1833.183116] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1833.183125] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1833.183135] Info fld=0x29e63
      [ 1833.183138] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1833.183149] end_request: I/O error, dev sr0, sector 686476
      [ 1833.183158] Buffer I/O error on device sr0, logical block 171619
      [ 1833.183165] Buffer I/O error on device sr0, logical block 171620
      [ 1833.183171] Buffer I/O error on device sr0, logical block 171621
      [ 1833.183178] Buffer I/O error on device sr0, logical block 171622
      [ 1833.183186] Buffer I/O error on device sr0, logical block 171623
      [ 1833.183192] Buffer I/O error on device sr0, logical block 171624
      [ 1833.183198] Buffer I/O error on device sr0, logical block 171625
      [ 1833.183205] Buffer I/O error on device sr0, logical block 171626
      [ 1833.183211] Buffer I/O error on device sr0, logical block 171627
      [ 1833.183217] Buffer I/O error on device sr0, logical block 171628
      [ 1833.809398] SQUASHFS error: squashfs_read_data failed to read block 0x14ca799e
      [ 1833.809410] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809416] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809430] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809435] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809448] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809453] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809464] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809469] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809481] SQUASHFS error: Unable to read fragment cache entry [14ca799e]
      [ 1833.809486] SQUASHFS error: Unable to read page, block 14ca799e, size cbee
      [ 1833.809964] SQUASHFS error: squashfs_read_data failed to read block 0x14cb458c
      [ 1833.809970] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.809976] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.809987] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.809993] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810004] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810010] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810022] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810027] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1833.810038] SQUASHFS error: Unable to read fragment cache entry [14cb458c]
      [ 1833.810043] SQUASHFS error: Unable to read page, block 14cb458c, size d114
      [ 1836.789006] SQUASHFS error: squashfs_read_data failed to read block 0x14aa2039
      [ 1836.789016] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789022] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789035] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789040] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789062] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789067] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789077] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789082] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1836.789094] SQUASHFS error: Unable to read data cache entry [14aa2039]
      [ 1836.789099] SQUASHFS error: Unable to read page, block 14aa2039, size eefe
      [ 1838.374737] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1838.374746] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1838.374755] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1838.374765] Info fld=0x29a4e
      [ 1838.374769] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1838.374779] end_request: I/O error, dev sr0, sector 682296
      [ 1838.374787] __ratelimit: 21 callbacks suppressed
      [ 1838.374793] Buffer I/O error on device sr0, logical block 170574
      [ 1838.374800] Buffer I/O error on device sr0, logical block 170575
      [ 1839.797988] SQUASHFS error: squashfs_read_data failed to read block 0x14c1c67c
      [ 1839.798001] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798009] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798027] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798033] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798044] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798050] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798059] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798065] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1839.798076] SQUASHFS error: Unable to read fragment cache entry [14c1c67c]
      [ 1839.798082] SQUASHFS error: Unable to read page, block 14c1c67c, size d566
      [ 1841.627526] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1841.627536] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1841.627544] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1841.627554] Info fld=0x29d40
      [ 1841.627558] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1841.627569] end_request: I/O error, dev sr0, sector 685312
      [ 1841.627579] Buffer I/O error on device sr0, logical block 171328
      [ 1841.627587] Buffer I/O error on device sr0, logical block 171329
      [ 1963.546354] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1963.546364] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1963.546372] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1963.546382] Info fld=0x28eb5
      [ 1963.546386] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1963.546397] end_request: I/O error, dev sr0, sector 670420
      [ 1963.546406] Buffer I/O error on device sr0, logical block 167605
      [ 1963.546413] Buffer I/O error on device sr0, logical block 167606
      [ 1963.546420] Buffer I/O error on device sr0, logical block 167607
      [ 1965.357624] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1965.357633] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1965.357642] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1965.357652] Info fld=0x28ec6
      [ 1965.357656] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1965.357666] end_request: I/O error, dev sr0, sector 670488
      [ 1965.357675] Buffer I/O error on device sr0, logical block 167622
      [ 1965.357682] Buffer I/O error on device sr0, logical block 167623
      [ 1966.092536] SQUASHFS error: squashfs_read_data failed to read block 0x144db49e
      [ 1966.092549] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092556] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092579] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092584] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092596] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092601] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092612] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092617] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.092630] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 1966.092635] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 1966.999276] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1966.999285] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1966.999294] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1966.999303] Info fld=0x28ec6
      [ 1966.999308] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1966.999318] end_request: I/O error, dev sr0, sector 670488
      [ 1966.999328] Buffer I/O error on device sr0, logical block 167622
      [ 1966.999337] Buffer I/O error on device sr0, logical block 167623
      [ 1966.999347] Buffer I/O error on device sr0, logical block 167624
      [ 1966.999354] Buffer I/O error on device sr0, logical block 167625
      [ 1966.999361] Buffer I/O error on device sr0, logical block 167626
      [ 1967.905835] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1967.905845] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1967.905853] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1967.905863] Info fld=0x28ec6
      [ 1967.905867] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1967.905877] end_request: I/O error, dev sr0, sector 670488
      [ 1968.810585] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1968.810591] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1968.810596] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1968.810601] Info fld=0x28ec6
      [ 1968.810603] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1968.810609] end_request: I/O error, dev sr0, sector 670488
      [ 1968.810615] __ratelimit: 31 callbacks suppressed
      [ 1968.810618] Buffer I/O error on device sr0, logical block 167622
      [ 1968.810623] Buffer I/O error on device sr0, logical block 167623
      [ 1969.716301] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1969.716310] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1969.716319] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1969.716328] Info fld=0x28ec6
      [ 1969.716332] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1969.716342] end_request: I/O error, dev sr0, sector 670488
      [ 1969.716353] Buffer I/O error on device sr0, logical block 167622
      [ 1969.716361] Buffer I/O error on device sr0, logical block 167623
      [ 1975.712868] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1975.712877] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1975.712886] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1975.712896] Info fld=0x28ec8
      [ 1975.712900] sr 4:0:0:0: [sr0] Add. Sense: No seek complete
      [ 1975.712909] end_request: I/O error, dev sr0, sector 670496
      [ 1975.712919] Buffer I/O error on device sr0, logical block 167624
      [ 1975.712928] Buffer I/O error on device sr0, logical block 167625
      [ 1978.603383] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 1978.603391] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 1978.603400] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 1978.603410] Info fld=0x28ef9
      [ 1978.603414] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 1978.603424] end_request: I/O error, dev sr0, sector 670692
      [ 1978.603433] Buffer I/O error on device sr0, logical block 167673
      [ 1978.603440] Buffer I/O error on device sr0, logical block 167674
      [ 1978.603446] Buffer I/O error on device sr0, logical block 167675
      [ 1978.603452] Buffer I/O error on device sr0, logical block 167676
      [ 1978.603459] Buffer I/O error on device sr0, logical block 167677
      [ 1978.603465] Buffer I/O error on device sr0, logical block 167678
      [ 1978.603472] Buffer I/O error on device sr0, logical block 167679
      [ 1978.603478] Buffer I/O error on device sr0, logical block 167680
      [ 2002.446123] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2002.446133] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2002.446142] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2002.446152] Info fld=0x31220
      [ 2002.446155] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2002.446166] end_request: I/O error, dev sr0, sector 804992
      [ 2002.446174] __ratelimit: 39 callbacks suppressed
      [ 2002.446180] Buffer I/O error on device sr0, logical block 201248
      [ 2002.446187] Buffer I/O error on device sr0, logical block 201249
      [ 2002.446193] Buffer I/O error on device sr0, logical block 201250
      [ 2002.446200] Buffer I/O error on device sr0, logical block 201251
      [ 2002.446206] Buffer I/O error on device sr0, logical block 201252
      [ 2002.446213] Buffer I/O error on device sr0, logical block 201253
      [ 2002.446220] Buffer I/O error on device sr0, logical block 201254
      [ 2002.446226] Buffer I/O error on device sr0, logical block 201255
      [ 2002.446232] Buffer I/O error on device sr0, logical block 201256
      [ 2002.446238] Buffer I/O error on device sr0, logical block 201257
      [ 2004.315641] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2004.315650] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2004.315659] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2004.315669] Info fld=0x31220
      [ 2004.315673] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2004.315683] end_request: I/O error, dev sr0, sector 804992
      [ 2004.315835] SQUASHFS error: squashfs_read_data failed to read block 0x186890b6
      [ 2004.315843] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315849] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315873] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315879] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315890] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315895] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315906] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315911] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315928] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315933] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315947] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315952] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315964] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315969] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315980] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.315985] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.315997] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316002] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316013] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316018] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316030] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316035] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316045] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316051] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316061] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316067] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316078] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316083] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316094] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316099] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316110] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316115] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316126] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316131] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316142] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316147] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316161] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316166] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316177] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316182] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316193] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316198] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316210] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316215] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316226] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316231] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316242] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316247] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316258] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316264] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316276] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316347] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316360] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316365] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316377] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316382] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316393] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316399] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316411] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316416] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316427] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316432] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316443] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316448] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2004.316461] SQUASHFS error: Unable to read data cache entry [186890b6]
      [ 2004.316466] SQUASHFS error: Unable to read page, block 186890b6, size bf81
      [ 2006.245533] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2006.245542] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2006.245551] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2006.245561] Info fld=0x31220
      [ 2006.245565] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2006.245575] end_request: I/O error, dev sr0, sector 804992
      [ 2006.984744] SQUASHFS error: squashfs_read_data failed to read block 0x14bb6a94
      [ 2006.984758] SQUASHFS error: Unable to read data cache entry [14bb6a94]
      [ 2006.984765] SQUASHFS error: Unable to read page, block 14bb6a94, size 59d9
      [ 2006.984805] Recursive core dump detected, aborting
      [ 2006.994179] SQUASHFS error: squashfs_read_data failed to read block 0x144db49e
      [ 2006.994191] SQUASHFS error: Unable to read data cache entry [144db49e]
      [ 2006.994197] SQUASHFS error: Unable to read page, block 144db49e, size c9cc
      [ 2008.898461] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2008.898471] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2008.898479] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2008.898489] Info fld=0x31244
      [ 2008.898493] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2008.898503] end_request: I/O error, dev sr0, sector 805136
      [ 2008.898513] __ratelimit: 30 callbacks suppressed
      [ 2008.898519] Buffer I/O error on device sr0, logical block 201284
      [ 2008.898528] Buffer I/O error on device sr0, logical block 201285
      [ 2008.898535] Buffer I/O error on device sr0, logical block 201286
      [ 2008.898541] Buffer I/O error on device sr0, logical block 201287
      [ 2008.898548] Buffer I/O error on device sr0, logical block 201288
      [ 2008.898554] Buffer I/O error on device sr0, logical block 201289
      [ 2008.898561] Buffer I/O error on device sr0, logical block 201290
      [ 2008.898567] Buffer I/O error on device sr0, logical block 201291
      [ 2008.898573] Buffer I/O error on device sr0, logical block 201292
      [ 2008.898579] Buffer I/O error on device sr0, logical block 201293
      [ 2015.275906] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2015.275915] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2015.275924] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2015.275933] Info fld=0x28ec6
      [ 2015.275938] sr 4:0:0:0: [sr0] Add. Sense: No seek complete
      [ 2015.275947] end_request: I/O error, dev sr0, sector 670488
      [ 2015.275956] __ratelimit: 54 callbacks suppressed
      [ 2015.275962] Buffer I/O error on device sr0, logical block 167622
      [ 2015.275972] Buffer I/O error on device sr0, logical block 167623
      [ 2016.560290] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2016.560299] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2016.560308] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2016.560319] Info fld=0x28ec6
      [ 2016.560323] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2016.560333] end_request: I/O error, dev sr0, sector 670488
      [ 2016.560344] Buffer I/O error on device sr0, logical block 167622
      [ 2016.560353] Buffer I/O error on device sr0, logical block 167623
      [ 2017.466006] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2017.466016] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2017.466024] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2017.466034] Info fld=0x28ec6
      [ 2017.466038] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2017.466048] end_request: I/O error, dev sr0, sector 670488
      [ 2017.466058] Buffer I/O error on device sr0, logical block 167622
      [ 2017.466067] Buffer I/O error on device sr0, logical block 167623
      [ 2018.371747] sr 4:0:0:0: [sr0] Unhandled sense code
      [ 2018.371756] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
      [ 2018.371764] sr 4:0:0:0: [sr0] Sense Key : Medium Error [current] 
      [ 2018.371774] Info fld=0x28ec6
      [ 2018.371778] sr 4:0:0:0: [sr0] Add. Sense: Unrecovered read error
      [ 2018.371788] end_request: I/O error, dev sr0, sector 670488
      [ 2018.371799] Buffer I/O error on device sr0, logical block 167622
      [ 2018.371808] Buffer I/O error on device sr0, logical block 167623
      [18826.872031] usb 2-6: new low speed USB device using ohci_hcd and address 10
      [18826.944048] hub 2-0:1.0: unable to enumerate USB device on port 6
      [18828.308041] usb 2-6: new low speed USB device using ohci_hcd and address 11
      [18828.535334] usb 2-6: configuration #1 chosen from 1 choice
      [18828.540051] usb 2-6: can't set config #1, error -62
      [18828.540153] usb 2-6: USB disconnect, address 11
      [18833.560032] usb 2-5: new low speed USB device using ohci_hcd and address 12
      [18833.784336] usb 2-5: configuration #1 chosen from 1 choice
      [18833.804777] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input16
      [18833.804937] generic-usb 0003:05A4:9866.000D: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [18833.821057] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input17
      [18833.821242] generic-usb 0003:05A4:9866.000E: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [19020.900038] usb 2-5: USB disconnect, address 12
      [19024.760029] usb 2-5: new low speed USB device using ohci_hcd and address 13
      [19024.820529] hub 2-0:1.0: unable to enumerate USB device on port 5
      [19025.608021] usb 2-5: new low speed USB device using ohci_hcd and address 14
      [19025.788022] usb 2-5: device descriptor read/64, error -62
      [19026.072021] usb 2-5: device descriptor read/64, error -62
      [19026.352024] usb 2-5: new low speed USB device using ohci_hcd and address 15
      [19026.444032] hub 2-0:1.0: unable to enumerate USB device on port 5
      [19528.240526] usb 2-5: new low speed USB device using ohci_hcd and address 16
      [19528.464333] usb 2-5: configuration #1 chosen from 1 choice
      [19528.479906] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input18
      [19528.480057] generic-usb 0003:05A4:9866.000F: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [19528.491730] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input19
      [19528.491913] generic-usb 0003:05A4:9866.0010: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [19682.587516] usb 2-5: USB disconnect, address 16
      [85071.476033] usb 2-5: new low speed USB device using ohci_hcd and address 17
      [85071.701340] usb 2-5: configuration #1 chosen from 1 choice
      [85071.719767] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input20
      [85071.719925] generic-usb 0003:05A4:9866.0011: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [85071.731851] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input21
      [85071.732028] generic-usb 0003:05A4:9866.0012: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [88720.857899] usb 2-5: USB disconnect, address 17
      [89883.140025] usb 2-5: new low speed USB device using ohci_hcd and address 18
      [89883.364324] usb 2-5: configuration #1 chosen from 1 choice
      [89883.379736] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input22
      [89883.379888] generic-usb 0003:05A4:9866.0013: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [89883.395267] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input23
      [89883.395451] generic-usb 0003:05A4:9866.0014: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [89886.755604] usb 2-5: USB disconnect, address 18
      [89887.684028] usb 2-5: new low speed USB device using ohci_hcd and address 19
      [89887.744031] hub 2-0:1.0: unable to enumerate USB device on port 5
      [89892.900025] usb 2-5: new low speed USB device using ohci_hcd and address 20
      [89893.124328] usb 2-5: configuration #1 chosen from 1 choice
      [89893.139770] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input24
      [89893.139928] generic-usb 0003:05A4:9866.0015: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [89893.152011] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input25
      [89893.152212] generic-usb 0003:05A4:9866.0016: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [89893.265875] usb 2-5: USB disconnect, address 20
      [89896.188025] usb 2-6: new low speed USB device using ohci_hcd and address 21
      [89896.412327] usb 2-6: configuration #1 chosen from 1 choice
      [89896.427751] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-6/2-6:1.0/input/input26
      [89896.427907] generic-usb 0003:05A4:9866.0017: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-6/input0
      [89896.441958] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-6/2-6:1.1/input/input27
      [89896.442146] generic-usb 0003:05A4:9866.0018: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-6/input1
      [89898.368205] usb 2-6: USB disconnect, address 21
      [89900.544024] usb 2-5: new low speed USB device using ohci_hcd and address 22
      [89900.769322] usb 2-5: configuration #1 chosen from 1 choice
      [89900.784745] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input28
      [89900.784897] generic-usb 0003:05A4:9866.0019: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [89900.798310] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input29
      [89900.798486] generic-usb 0003:05A4:9866.001A: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      [89906.090901] usb 2-5: USB disconnect, address 22
      [89912.108029] hub 2-0:1.0: unable to enumerate USB device on port 5
      [89913.676026] usb 2-5: new low speed USB device using ohci_hcd and address 24
      [89913.900324] usb 2-5: configuration #1 chosen from 1 choice
      [89913.915787] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.0/input/input30
      [89913.915946] generic-usb 0003:05A4:9866.001B: input,hidraw3: USB HID v1.10 Keyboard [  RF USB Device] on usb-0000:00:02.0-5/input0
      [89913.927962] input:   RF USB Device as /devices/pci0000:00/0000:00:02.0/usb2/2-5/2-5:1.1/input/input31
      [89913.928146] generic-usb 0003:05A4:9866.001C: input,hidraw4: USB HID v1.10 Mouse [  RF USB Device] on usb-0000:00:02.0-5/input1
      I can't read this, but used quickdiff.com to compare the difference. Each Time that I run the commands, I get different results such as these differences:


      Code:
      [ 1810.701598] SQUASHFS error: Unable to read page, block 14a63fa5, size fa1d
      [90798.605249] usb 2-5: USB disconnect, address 24
      Last edited by AdvicePro; 01-11-2011 at 05:09 PM.

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