у меня поврежденная карта microSD от коллеги. Он попросил меня сохранить его данные, если это возможно. Я использую недавний usb-multi-cardreader. MicroSD - это карта большой емкости с 32 ГБ свободного места. Я подозреваю, что это поврежденная таблица разделов или что-то подобное ...
Я пытался использовать testdisk, но устройство не обнаружено, потому что оно явно выключается (см. Журнал dmesg). Однако, когда я вставляю microSD и запускаю тест-диск достаточно быстро (сразу после установки), карта обнаруживается, но становится недоступной, и тест-диск не может найти ее через 2 секунды. (/dev/sdd больше не доступен)
У меня вопрос, как я могу предотвратить разгрузку устройства системой? Это регулируется кард-ридером, драйвером или системой Linux? Могу ли я что-нибудь сделать вручную? Или вы думаете, что карта жареная, и я должен положить ее в корзину?
Когда я вставляю карту, через dmesg появляется следующий вывод:
[ 2681.737700] sd 6:0:0:2: [sdd] 62333952 512-byte logical blocks: (31.9 GB/29.7 GiB)
[ 2685.791546] sd 6:0:0:2: [sdd] Device not ready
[ 2685.791551] sd 6:0:0:2: [sdd]
[ 2685.791552] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.791554] sd 6:0:0:2: [sdd]
[ 2685.791556] Sense Key : Not Ready [current]
[ 2685.791559] sd 6:0:0:2: [sdd]
[ 2685.791561] Add. Sense: Medium not present
[ 2685.791563] sd 6:0:0:2: [sdd] CDB:
[ 2685.791565] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.791571] blk_update_request: 7 callbacks suppressed
[ 2685.791573] end_request: I/O error, dev sdd, sector 0
[ 2685.791577] Buffer I/O error on device sdd, logical block 0
[ 2685.792878] sd 6:0:0:2: [sdd] Device not ready
[ 2685.792881] sd 6:0:0:2: [sdd]
[ 2685.792883] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.792884] sd 6:0:0:2: [sdd]
[ 2685.792885] Sense Key : Not Ready [current]
[ 2685.792887] sd 6:0:0:2: [sdd]
[ 2685.792888] Add. Sense: Medium not present
[ 2685.792890] sd 6:0:0:2: [sdd] CDB:
[ 2685.792891] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.792895] end_request: I/O error, dev sdd, sector 0
[ 2685.792897] Buffer I/O error on device sdd, logical block 0
[ 2685.794126] sd 6:0:0:2: [sdd] Device not ready
[ 2685.794129] sd 6:0:0:2: [sdd]
[ 2685.794131] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.794133] sd 6:0:0:2: [sdd]
[ 2685.794134] Sense Key : Not Ready [current]
[ 2685.794137] sd 6:0:0:2: [sdd]
[ 2685.794147] Add. Sense: Medium not present
[ 2685.794149] sd 6:0:0:2: [sdd] CDB:
[ 2685.794150] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.794156] end_request: I/O error, dev sdd, sector 0
[ 2685.794159] Buffer I/O error on device sdd, logical block 0
[ 2685.795665] sd 6:0:0:2: [sdd] Device not ready
[ 2685.795670] sd 6:0:0:2: [sdd]
[ 2685.795672] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.795674] sd 6:0:0:2: [sdd]
[ 2685.795675] Sense Key : Not Ready [current]
[ 2685.795679] sd 6:0:0:2: [sdd]
[ 2685.795682] Add. Sense: Medium not present
[ 2685.795684] sd 6:0:0:2: [sdd] CDB:
[ 2685.795686] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.795694] end_request: I/O error, dev sdd, sector 0
[ 2685.795697] Buffer I/O error on device sdd, logical block 0
[ 2685.797005] sd 6:0:0:2: [sdd] Device not ready
[ 2685.797010] sd 6:0:0:2: [sdd]
[ 2685.797012] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.797014] sd 6:0:0:2: [sdd]
[ 2685.797015] Sense Key : Not Ready [current]
[ 2685.797019] sd 6:0:0:2: [sdd]
[ 2685.797021] Add. Sense: Medium not present
[ 2685.797024] sd 6:0:0:2: [sdd] CDB:
[ 2685.797025] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.797033] end_request: I/O error, dev sdd, sector 0
[ 2685.797036] Buffer I/O error on device sdd, logical block 0
[ 2685.798384] sd 6:0:0:2: [sdd] Device not ready
[ 2685.798387] sd 6:0:0:2: [sdd]
[ 2685.798389] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.798391] sd 6:0:0:2: [sdd]
[ 2685.798392] Sense Key : Not Ready [current]
[ 2685.798395] sd 6:0:0:2: [sdd]
[ 2685.798397] Add. Sense: Medium not present
[ 2685.798399] sd 6:0:0:2: [sdd] CDB:
[ 2685.798400] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.798407] end_request: I/O error, dev sdd, sector 0
[ 2685.798409] Buffer I/O error on device sdd, logical block 0
[ 2685.799623] sd 6:0:0:2: [sdd] Device not ready
[ 2685.799625] sd 6:0:0:2: [sdd]
[ 2685.799626] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.799628] sd 6:0:0:2: [sdd]
[ 2685.799630] Sense Key : Not Ready [current]
[ 2685.799632] sd 6:0:0:2: [sdd]
[ 2685.799634] Add. Sense: Medium not present
[ 2685.799637] sd 6:0:0:2: [sdd] CDB:
[ 2685.799646] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.799652] end_request: I/O error, dev sdd, sector 0
[ 2685.799653] Buffer I/O error on device sdd, logical block 0
[ 2685.800870] sd 6:0:0:2: [sdd] Device not ready
[ 2685.800872] sd 6:0:0:2: [sdd]
[ 2685.800873] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.800874] sd 6:0:0:2: [sdd]
[ 2685.800875] Sense Key : Not Ready [current]
[ 2685.800877] sd 6:0:0:2: [sdd]
[ 2685.800879] Add. Sense: Medium not present
[ 2685.800880] sd 6:0:0:2: [sdd] CDB:
[ 2685.800881] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.800887] end_request: I/O error, dev sdd, sector 0
[ 2685.800888] Buffer I/O error on device sdd, logical block 0
[ 2685.800922] ldm_validate_partition_table(): Disk read failed.
[ 2685.802152] sd 6:0:0:2: [sdd] Device not ready
[ 2685.802157] sd 6:0:0:2: [sdd]
[ 2685.802159] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.802162] sd 6:0:0:2: [sdd]
[ 2685.802163] Sense Key : Not Ready [current]
[ 2685.802167] sd 6:0:0:2: [sdd]
[ 2685.802170] Add. Sense: Medium not present
[ 2685.802172] sd 6:0:0:2: [sdd] CDB:
[ 2685.802174] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.802194] end_request: I/O error, dev sdd, sector 0
[ 2685.802198] Buffer I/O error on device sdd, logical block 0
[ 2685.803514] sd 6:0:0:2: [sdd] Device not ready
[ 2685.803517] sd 6:0:0:2: [sdd]
[ 2685.803518] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.803520] sd 6:0:0:2: [sdd]
[ 2685.803522] Sense Key : Not Ready [current]
[ 2685.803524] sd 6:0:0:2: [sdd]
[ 2685.803526] Add. Sense: Medium not present
[ 2685.803529] sd 6:0:0:2: [sdd] CDB:
[ 2685.803530] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.803543] end_request: I/O error, dev sdd, sector 0
[ 2685.803545] Buffer I/O error on device sdd, logical block 0
[ 2685.804743] sd 6:0:0:2: [sdd] Device not ready
[ 2685.804745] sd 6:0:0:2: [sdd]
[ 2685.804746] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.804747] sd 6:0:0:2: [sdd]
[ 2685.804748] Sense Key : Not Ready [current]
[ 2685.804750] sd 6:0:0:2: [sdd]
[ 2685.804751] Add. Sense: Medium not present
[ 2685.804752] sd 6:0:0:2: [sdd] CDB:
[ 2685.804753] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.805997] sd 6:0:0:2: [sdd] Device not ready
[ 2685.805999] sd 6:0:0:2: [sdd]
[ 2685.806001] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.806003] sd 6:0:0:2: [sdd]
[ 2685.806004] Sense Key : Not Ready [current]
[ 2685.806007] sd 6:0:0:2: [sdd]
[ 2685.806008] Add. Sense: Medium not present
[ 2685.806011] sd 6:0:0:2: [sdd] CDB:
[ 2685.806012] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.806033] Dev sdd: unable to read RDB block 0
[ 2685.807249] sd 6:0:0:2: [sdd] Device not ready
[ 2685.807252] sd 6:0:0:2: [sdd]
[ 2685.807254] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.807256] sd 6:0:0:2: [sdd]
[ 2685.807257] Sense Key : Not Ready [current]
[ 2685.807260] sd 6:0:0:2: [sdd]
[ 2685.807262] Add. Sense: Medium not present
[ 2685.807264] sd 6:0:0:2: [sdd] CDB:
[ 2685.807265] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.808496] sd 6:0:0:2: [sdd] Device not ready
[ 2685.808499] sd 6:0:0:2: [sdd]
[ 2685.808500] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.808502] sd 6:0:0:2: [sdd]
[ 2685.808504] Sense Key : Not Ready [current]
[ 2685.808506] sd 6:0:0:2: [sdd]
[ 2685.808508] Add. Sense: Medium not present
[ 2685.808510] sd 6:0:0:2: [sdd] CDB:
[ 2685.808511] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.809747] sd 6:0:0:2: [sdd] Device not ready
[ 2685.809749] sd 6:0:0:2: [sdd]
[ 2685.809751] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.809752] sd 6:0:0:2: [sdd]
[ 2685.809754] Sense Key : Not Ready [current]
[ 2685.809756] sd 6:0:0:2: [sdd]
[ 2685.809758] Add. Sense: Medium not present
[ 2685.809760] sd 6:0:0:2: [sdd] CDB:
[ 2685.809762] Read(10): 28 00 00 00 00 18 00 00 08 00
[ 2685.811137] sd 6:0:0:2: [sdd] Device not ready
[ 2685.811139] sd 6:0:0:2: [sdd]
[ 2685.811141] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.811143] sd 6:0:0:2: [sdd]
[ 2685.811144] Sense Key : Not Ready [current]
[ 2685.811146] sd 6:0:0:2: [sdd]
[ 2685.811148] Add. Sense: Medium not present
[ 2685.811151] sd 6:0:0:2: [sdd] CDB:
[ 2685.811152] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.812375] sd 6:0:0:2: [sdd] Device not ready
[ 2685.812377] sd 6:0:0:2: [sdd]
[ 2685.812379] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.812381] sd 6:0:0:2: [sdd]
[ 2685.812382] Sense Key : Not Ready [current]
[ 2685.812384] sd 6:0:0:2: [sdd]
[ 2685.812386] Add. Sense: Medium not present
[ 2685.812389] sd 6:0:0:2: [sdd] CDB:
[ 2685.812390] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2685.812404] sdd: unable to read partition table
[ 2685.813745] sd 6:0:0:2: [sdd] Device not ready
[ 2685.813748] sd 6:0:0:2: [sdd]
[ 2685.813749] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.813751] sd 6:0:0:2: [sdd]
[ 2685.813752] Sense Key : Not Ready [current]
[ 2685.813755] sd 6:0:0:2: [sdd]
[ 2685.813757] Add. Sense: Medium not present
[ 2685.813759] sd 6:0:0:2: [sdd] CDB:
[ 2685.813760] Read(10): 28 00 03 b7 23 80 00 00 08 00
[ 2685.815011] sd 6:0:0:2: [sdd] Device not ready
[ 2685.815014] sd 6:0:0:2: [sdd]
[ 2685.815015] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2685.815017] sd 6:0:0:2: [sdd]
[ 2685.815018] Sense Key : Not Ready [current]
[ 2685.815021] sd 6:0:0:2: [sdd]
[ 2685.815023] Add. Sense: Medium not present
[ 2685.815033] sd 6:0:0:2: [sdd] CDB:
[ 2685.815034] Read(10): 28 00 03 b7 23 80 00 00 08 00
[ 2685.817253] sdd: detected capacity change from 31914983424 to 0