Bon, rectification, il y a bien quelque chose dans les logs :
[36335.026543] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.026560] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.026571] hda: possibly failed opcode: 0xa0
[36335.028840] ATAPI device hda:
[36335.028847] Error: Illegal request -- (Sense key=0x05)
[36335.028856] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.028862] The failed "Read 10" packet command was:
[36335.028866] "28 00 00 05 63 20 00 00 02 00 00 00 00 00 00 00 "
[36335.028892] end_request: I/O error, dev hda, sector 1412224
[36335.028900] Buffer I/O error on device hda, logical block 353056
[36335.028908] Buffer I/O error on device hda, logical block 353057
[36335.033227] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.033241] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.033252] hda: possibly failed opcode: 0xa0
[36335.036568] ATAPI device hda:
[36335.036574] Error: Illegal request -- (Sense key=0x05)
[36335.036582] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.036588] The failed "Read 10" packet command was:
[36335.036591] "28 00 00 05 63 20 00 00 02 00 00 00 00 00 00 00 "
[36335.036616] end_request: I/O error, dev hda, sector 1412224
[36335.036624] Buffer I/O error on device hda, logical block 353056
[36335.036631] Buffer I/O error on device hda, logical block 353057
[36335.040865] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.040879] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.040889] hda: possibly failed opcode: 0xa0
[36335.045626] ATAPI device hda:
[36335.045632] Error: Illegal request -- (Sense key=0x05)
[36335.045640] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.045645] The failed "Read 10" packet command was:
[36335.045648] "28 00 00 05 63 40 00 00 02 00 00 00 00 00 00 00 "
[36335.045674] end_request: I/O error, dev hda, sector 1412352
[36335.045681] Buffer I/O error on device hda, logical block 353088
[36335.045688] Buffer I/O error on device hda, logical block 353089
[36335.049893] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.049908] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.049919] hda: possibly failed opcode: 0xa0
[36335.052557] ATAPI device hda:
[36335.052563] Error: Illegal request -- (Sense key=0x05)
[36335.052572] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.052578] The failed "Read 10" packet command was:
[36335.052581] "28 00 00 05 63 40 00 00 02 00 00 00 00 00 00 00 "
[36335.052607] end_request: I/O error, dev hda, sector 1412352
[36335.052615] Buffer I/O error on device hda, logical block 353088
[36335.052623] Buffer I/O error on device hda, logical block 353089
[36335.056730] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.056745] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.056756] hda: possibly failed opcode: 0xa0
[36335.061544] ATAPI device hda:
[36335.061551] Error: Illegal request -- (Sense key=0x05)
[36335.061560] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.061565] The failed "Read 10" packet command was:
[36335.061568] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.061594] end_request: I/O error, dev hda, sector 1412368
[36335.061603] Buffer I/O error on device hda, logical block 353092
[36335.063663] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.063677] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.063688] hda: possibly failed opcode: 0xa0
[36335.064549] ATAPI device hda:
[36335.064555] Error: Illegal request -- (Sense key=0x05)
[36335.064563] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.064569] The failed "Read 10" packet command was:
[36335.064571] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.064597] end_request: I/O error, dev hda, sector 1412368
[36335.064606] Buffer I/O error on device hda, logical block 353092
[36335.066732] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.066747] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.066758] hda: possibly failed opcode: 0xa0
[36335.068557] ATAPI device hda:
[36335.068562] Error: Illegal request -- (Sense key=0x05)
[36335.068571] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.068577] The failed "Read 10" packet command was:
[36335.068580] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.068605] end_request: I/O error, dev hda, sector 1412368
[36335.071509] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.071523] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.071534] hda: possibly failed opcode: 0xa0
[36335.073798] ATAPI device hda:
[36335.073805] Error: Illegal request -- (Sense key=0x05)
[36335.073814] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.073820] The failed "Read 10" packet command was:
[36335.073823] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.073849] end_request: I/O error, dev hda, sector 1412368
[36335.076599] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.076613] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.076623] hda: possibly failed opcode: 0xa0
[36335.077435] ATAPI device hda:
[36335.077440] Error: Illegal request -- (Sense key=0x05)
[36335.077447] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.077453] The failed "Read 10" packet command was:
[36335.077456] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.077481] end_request: I/O error, dev hda, sector 1412368
[36335.080788] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.080805] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.080816] hda: possibly failed opcode: 0xa0
[36335.084469] ATAPI device hda:
[36335.084476] Error: Illegal request -- (Sense key=0x05)
[36335.084485] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.084491] The failed "Read 10" packet command was:
[36335.084493] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.084519] end_request: I/O error, dev hda, sector 1412368
[36335.087799] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.087814] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.087824] hda: possibly failed opcode: 0xa0
[36335.089612] ATAPI device hda:
[36335.089618] Error: Illegal request -- (Sense key=0x05)
[36335.089627] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.089633] The failed "Read 10" packet command was:
[36335.089636] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.089662] end_request: I/O error, dev hda, sector 1412368
[36335.100725] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.100741] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.100752] hda: possibly failed opcode: 0xa0
[36335.101413] ATAPI device hda:
[36335.101417] Error: Illegal request -- (Sense key=0x05)
[36335.101426] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.101432] The failed "Read 10" packet command was:
[36335.101435] "28 00 00 05 63 34 00 00 02 00 00 00 00 00 00 00 "
[36335.101461] end_request: I/O error, dev hda, sector 1412304
[36335.102190] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.102204] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.102215] hda: possibly failed opcode: 0xa0
[36335.106127] ATAPI device hda:
[36335.106134] Error: Illegal request -- (Sense key=0x05)
[36335.106143] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.106149] The failed "Read 10" packet command was:
[36335.106152] "28 00 00 05 63 42 00 00 02 00 00 00 00 00 00 00 "
[36335.106178] end_request: I/O error, dev hda, sector 1412360
[36335.106912] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.106926] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.106936] hda: possibly failed opcode: 0xa0
[36335.109478] ATAPI device hda:
[36335.109483] Error: Illegal request -- (Sense key=0x05)
[36335.109491] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.109496] The failed "Read 10" packet command was:
[36335.109499] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.109524] end_request: I/O error, dev hda, sector 1412368
[36335.110202] hda: command error: status=0x51 { DriveReady SeekComplete Error }
[36335.110216] hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 }
[36335.110226] hda: possibly failed opcode: 0xa0
[36335.113799] ATAPI device hda:
[36335.113805] Error: Illegal request -- (Sense key=0x05)
[36335.113815] Logical block address out of range -- (asc=0x21, ascq=0x00)
[36335.113820] The failed "Read 10" packet command was:
[36335.113823] "28 00 00 05 63 44 00 00 01 00 00 00 00 00 00 00 "
[36335.113849] end_request: I/O error, dev hda, sector 1412368
[36438.102754] UDF-fs: No VRS found
[36438.102761] UDF-fs: No partition found (1)
[36438.170903] ISO 9660 Extensions: Microsoft Joliet Level 3
[36438.173851] ISOFS: changing to secondary root