[問題] recovering an filesystem corruption

看板Linux作者kdjf (我抓得到什麼呢?)時間9年前 (2015/01/23 20:46)推噓1(1推 0噓 4→)

留言5則, 3人參與討論串1/1

Sorry for using english, I'm running on a old liveCD. When I boot my system (Ubuntu 12.04) half an hour ago, it crashed. Only black screen with mouse pointer show up after login into lightdm. I rebooted, get dropped into initramfs prompt. The disk keep spining up and down. Tried mounting the filesystem, but in vain. Now I booted from liveCD, # dd if=rootdev bs=4k skip=1 count=1 and got: 00000000 ff a1 00 00 10 00 00 00 c0 aa bc 54 16 93 06 00 |...........T....| 00000010 0f c2 06 00 00 00 00 00 00 00 01 00 00 00 00 00 |................| 00000020 00 00 00 00 01 00 00 00 2f 75 73 72 2f 62 69 6e |......../usr/bin| 00000030 2f 6d 6c 6f 63 61 74 65 00 00 02 00 00 00 00 00 |/mlocate........| 00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000060 00 00 00 00 b4 d8 dd c6 00 00 00 00 00 00 00 00 |................| 00000070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000080 1c 00 00 00 e0 e2 7e 84 e0 e2 7e 84 30 0d 4d 78 |......~...~.0.Mx| 00000090 67 2d 4b 51 e0 e2 7e 84 00 00 00 00 00 00 00 00 |g-KQ..~.........| 000000a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000100 ff a1 00 00 20 00 00 00 e7 0b bb 54 67 2d 4b 51 |.... ......Tg-KQ| 00000110 67 2d 4b 51 00 00 00 00 00 00 01 00 00 00 00 00 |g-KQ............| 00000120 00 00 00 00 01 00 00 00 2f 75 73 72 2f 73 68 61 |......../usr/sha| 00000130 72 65 2f 6d 61 6e 2f 6d 61 6e 31 2f 6d 6c 6f 63 |re/man/man1/mloc| 00000140 61 74 65 2e 31 2e 67 7a 00 00 00 00 00 00 00 00 |ate.1.gz........| 00000150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000160 00 00 00 00 b5 d8 dd c6 00 00 00 00 00 00 00 00 |................| 00000170 00 00 00 00 00 00 00 00 f1 99 77 06 00 00 00 00 |..........w.....| 00000180 1c 00 00 00 e0 e2 7e 84 e0 e2 7e 84 6c f5 69 4e |......~...~.l.iN| 00000190 67 2d 4b 51 ea e2 7e 84 38 2d c2 54 08 00 00 00 |g-KQ..~.8-.T....| 000001a0 6a 88 18 00 00 00 00 00 65 78 74 34 5f 6d 61 70 |j.......ext4_map| 000001b0 5f 62 6c 6f 63 6b 73 00 00 00 00 00 00 00 00 00 |_blocks.........| 000001c0 00 00 00 00 00 00 00 00 51 02 00 00 38 2d c2 54 |........Q...8-.T| 000001d0 08 00 00 00 51 02 00 00 73 88 18 00 00 00 00 00 |....Q...s.......| 000001e0 65 78 74 34 5f 6d 61 70 5f 62 6c 6f 63 6b 73 00 |ext4_map_blocks.| 000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000200 ff a1 00 00 0b 00 00 00 c0 aa bc 54 67 2d 4b 51 |...........Tg-KQ| 00000210 67 2d 4b 51 00 00 00 00 00 00 01 00 00 00 00 00 |g-KQ............| 00000220 00 00 00 00 01 00 00 00 2f 62 69 6e 2f 6d 74 2d |......../bin/mt-| 00000230 67 6e 75 00 00 00 00 00 00 00 00 00 00 00 00 00 |gnu.............| which is not at all an ext4 FS Then I tried # mount -t ext4 -oro,sb=163840(or 32768, etc., the common backup superblock position) /dev/sda5 /mnt mount: wrong fs type, bad option, bad superblock on /dev/sda5 ..... smartctl -a gives some panding sectors Then what else can I do to recover/mount my system? And does it look like I have to replace the disk? -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 220.136.216.101 ※ 文章網址: https://www.ptt.cc/bbs/Linux/M.1422017189.A.473.html

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