Canon SX40の16GB Kingston SDHCがあり、破損しているかハードウェアエラーが発生しているようです。
カメラには一部の写真とビデオのみが表示されます（カメラで一部のコンテンツを読むことができないと言います）。しかし、私はそこでより多くの写真を撮りたい/必要があります（現在遠くに住んでいる母親と母親の友人の誕生日）。
SDをカードリーダーに接続すると、ファイルエクスプローラ（Caja）が自動的に開き、数秒後に閉じます。その数秒間、DCMIフォルダをダブルクリックしてコンテンツを表示することもできましたが、何も表示できませんでした。
その数秒間、/ sdb1が/ devに現れて消えます。 GpartedとPhotorecの両方が読み取れません。また、dd は sdb から読み取ることができません。
$ sudo dd if=/dev/sdb of=tarjeta.img bs=512
dd: No se puede abrir '/dev/sdb': No se ha encontrado el medio
もう一つの試み：
$ sudo ddrescue -dr3 /dev/sdb card.image logfile
ddrescue: Can't open input file: No medium found
今度は「秒」の間にddrescueを再試行してください...消えるまで：
$ sudo ddrescue -dr3 /dev/sdb card.image logfile
GNU ddrescue 1.24
Press Ctrl-C to interrupt
ipos: 10747 kB, non-trimmed: 78708 kB, current rate: 0 B/s
opos: 10747 kB, non-scraped: 0 B, average rate: 2149 kB/s
non-tried: 0 B, bad-sector: 0 B, error rate: 85393 kB/s
rescued: 10747 kB, bad areas: 0, run time: 4s
pct rescued: 0.06%, read errors: 1402, remaining time: n/a
time since last successful read: 0s
Trimming failed blocks... (forwards)
ddrescue: Unaligned read error. Is sector size correct?
カードを挿入するときのdmsegは次のとおりです。
[67030.250419] sd 6:0:0:0: [sdb] 31047680 512-byte logical blocks: (15.9 GB/14.8 GiB)
[67030.252183] sd 6:0:0:0: [sdb] Write Protect is off
[67030.252188] sd 6:0:0:0: [sdb] Mode Sense: 4b 00 00 08
[67030.258544] sdb: sdb1
[67030.956050] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[67035.709902] scsi_io_completion: 119 callbacks suppressed
[67035.709908] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67035.709911] sd 6:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current]
[67035.709914] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Logical block address out of range
[67035.709917] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 41 00 00 01 00
[67035.709918] blk_update_request: 119 callbacks suppressed
[67035.709920] blk_update_request: critical target error, dev sdb, sector 25782849
[67035.846388] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67035.846391] sd 6:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current]
[67035.846394] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Logical block address out of range
[67035.846397] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 42 00 00 01 00
[67035.846400] blk_update_request: critical target error, dev sdb, sector 25782850
[67035.982878] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67035.982883] sd 6:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current]
[67035.982886] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Logical block address out of range
[67035.982890] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 43 00 00 01 00
[67035.982893] blk_update_request: critical target error, dev sdb, sector 25782851
[67036.119373] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.119377] sd 6:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current]
[67036.119380] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Logical block address out of range
[67036.119383] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 44 00 00 01 00
[67036.119385] blk_update_request: critical target error, dev sdb, sector 25782852
[67036.277084] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.277088] sd 6:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current]
[67036.277092] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Logical block address out of range
[67036.277096] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 45 00 00 01 00
[67036.277098] blk_update_request: critical target error, dev sdb, sector 25782853
[67036.278149] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.278153] sd 6:0:0:0: [sdb] tag#0 Sense Key : Not Ready [current]
[67036.278156] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Medium not present
[67036.278159] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 46 00 00 01 00
[67036.278162] blk_update_request: I/O error, dev sdb, sector 25782854
[67036.279195] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.279197] sd 6:0:0:0: [sdb] tag#0 Sense Key : Not Ready [current]
[67036.279200] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Medium not present
[67036.279203] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 47 00 00 02 00
[67036.279205] blk_update_request: I/O error, dev sdb, sector 25782855
[67036.280326] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.280330] sd 6:0:0:0: [sdb] tag#0 Sense Key : Not Ready [current]
[67036.280333] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Medium not present
[67036.280336] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 48 00 00 01 00
[67036.280338] blk_update_request: I/O error, dev sdb, sector 25782856
[67036.281448] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.281451] sd 6:0:0:0: [sdb] tag#0 Sense Key : Not Ready [current]
[67036.281454] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Medium not present
[67036.281457] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 49 00 00 01 00
[67036.281459] blk_update_request: I/O error, dev sdb, sector 25782857
[67036.282445] sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[67036.282448] sd 6:0:0:0: [sdb] tag#0 Sense Key : Not Ready [current]
[67036.282451] sd 6:0:0:0: [sdb] tag#0 Add. Sense: Medium not present
[67036.282454] sd 6:0:0:0: [sdb] tag#0 CDB: Read(10) 28 00 01 89 6a 4a 00 00 01 00
[67036.282456] blk_update_request: I/O error, dev sdb, sector 25782858
[67036.341825] FAT-fs (sdb1): Directory bread(block 25774657) failed
[67036.342819] FAT-fs (sdb1): Directory bread(block 25774658) failed
[67036.344750] FAT-fs (sdb1): Directory bread(block 25774659) failed
[67036.345900] FAT-fs (sdb1): Directory bread(block 25774660) failed
[67036.346943] FAT-fs (sdb1): Directory bread(block 25774661) failed
[67036.348077] FAT-fs (sdb1): Directory bread(block 25774662) failed
[67036.349069] FAT-fs (sdb1): Directory bread(block 25774663) failed
[67036.350169] FAT-fs (sdb1): Directory bread(block 25774664) failed
[67036.351453] FAT-fs (sdb1): Directory bread(block 25774665) failed
[67036.352443] FAT-fs (sdb1): Directory bread(block 25774666) failed
[67036.409693] FAT-fs (sdb1): error, corrupted directory (invalid entries)
[67036.409699] FAT-fs (sdb1): Filesystem has been set read-only
[67036.443807] Buffer I/O error on dev sdb1, logical block 3759, lost async page write
[67036.471054] Buffer I/O error on dev sdb1, logical block 7548, lost async page write
[67037.040148] VFS: Dirty inode writeback failed for block device sdb1 (err=-5).
ここから画像/ビデオをインポートできますか？
オペレーティングシステム：Debian Stretch x64 Mate。