On 11/02/2015 08:02 PM, o1bigtenor wrote:
> root@debianbase:/# dd if=/dev/md0 bs=1M count=16 |hexdump -C |head -n 1000
> 00000260 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
> *
> 00100400 00 20 47 07 00 14 1c 1d 99 9a 74 01 f0 80 72 18 |. G.......t...r.|
> 00100410 83 b0 3d 07 00 00 00 00 02 00 00 00 02 00 00 00 |..=.............|
> 00100420 00 80 00 00 00 80 00 00 00 20 00 00 fa 46 d5 55 |......... ...F.U|
> 00100430 78 80 e0 55 5a 00 27 00 53 ef 01 00 01 00 00 00 |x..UZ.'.S.......|
> 00100440 1e de 6d 52 00 4e ed 00 00 00 00 00 01 00 00 00 |..mR.N..........|
> 00100450 00 00 00 00 0b 00 00 00 00 01 00 00 3c 00 00 00 |............<...|
> 00100460 42 02 00 00 7b 00 00 00 49 55 20 36 b4 6f 49 56 |B...{...IU 6.oIV|
> 00100470 ad e9 35 41 a3 dd 7f 0a 00 00 00 00 00 00 00 00 |..5A............|
> 00100480 00 00 00 00 00 00 00 00 2f 6d 65 64 69 61 2f 64 |......../media/d|
> 00100490 61 72 61 6c 64 2f 34 39 35 35 32 30 33 36 2d 62 |arald/49552036-b|
> 001004a0 34 36 66 2d 34 39 35 36 2d 61 64 65 39 2d 33 35 |46f-4956-ade9-35|
> 001004b0 34 31 61 33 64 64 37 66 30 61 00 00 00 00 00 00 |41a3dd7f0a......|
> 001004c0 00 00 d8 60 0f fa 0f 88 00 00 00 00 00 00 8b 03 |...`............|
> 001004d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
> 001004e0 08 00 00 00 00 00 00 00 00 00 00 00 c7 2a e8 cd |.............*..|
> 001004f0 c2 6f 4d 09 8f c2 2b 44 fc 95 b6 5e 01 01 00 00 |.oM...+D...^....|
> 00100500 00 00 00 00 00 00 00 00 a1 25 65 4f 0a f3 02 00 |.........%eO....|
> 00100510 04 00 00 00 00 00 00 00 00 00 00 00 ff 7f 00 00 |................|
> 00100520 00 80 88 0e ff 7f 00 00 01 00 00 00 ff ff 88 0e |................|
> 00100530 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
> 00100540 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 |................|
> 00100550 00 00 00 00 00 00 00 00 00 00 00 00 1c 00 1c 00 |................|
> 00100560 01 00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 |................|
> 00100570 00 01 00 00 04 00 00 00 a8 96 ac 12 00 00 00 00 |................|
> 00100580 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
> *
Woo hoo! There's your ext4 superblock.
Use "gdisk /dev/md0" and create a partition starting at sector 2048 and
occupying the rest of the array. After you save that, you may need
"partprobe /dev/md0" to rescan it.
You'll probably end up with a device named something like /dev/md0p1.
The output of dmesg will likely show you the device name.
Use "fsck -n /dev/md0p1" to verify the filesystem, and if that has
relatively few errors, you may mount it and start making backups.
Phil
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