On 02/21/2013 02:29 PM, Stone wrote: > ok i let the hexdump running for 30-60 min and then i check mehr > chunk. if i can open the luks i should check again the superblocks? > fsck.ext4 -n -b <superblock> /dev/mapper/md2_nas ? > > but i see there is a result from hex: [trim /] None of those look like real superblocks. Here's the beginning of that report for a simple fs here: 00000430 1d 22 26 51 3b 00 ff ff 53 ef 01 00 01 00 00 00 |."&Q;...S.......| 0371f730 98 73 ed 8f 60 6a f0 5f 53 ef 43 bd 58 f0 b0 11 |.s..`j._S.C.X...| 0377dc30 24 18 c0 32 ef f2 c0 4a 53 ef ac 90 d1 30 9c 01 |$..2...JS....0..| 03951c30 26 0d 5f ef 3a a9 10 07 53 ef aa 87 3c 17 d1 32 |&._.:...S...<..2| 03a7ec30 77 6b fb 23 cf 1a d6 7f 53 ef ce 73 70 b4 8c ce |wk.#....S..sp...| 05816930 22 00 f6 22 e8 a7 89 49 53 ef 56 00 e1 8d 5c b7 |".."...IS.V...\.| 06265630 e9 c3 a0 10 29 cc 70 b2 53 ef 8c 07 0d aa 30 90 |....).p.S.....0.| 066dae30 c1 c0 aa 32 6c 56 33 43 53 ef d4 bd 5f 03 fc 06 |...2lV3CS..._...| 06ee0730 88 8a 99 09 0e e8 af ba 53 ef db 77 83 62 6e a0 |........S..w.bn.| 07842630 c6 ff d7 79 f8 5d 20 87 53 ef cf df 67 90 91 19 |...y.] .S...g...| 08000030 42 5b f8 4f 00 00 ff ff 53 ef 00 00 01 00 00 00 |B[.O....S.......| 08826630 e2 ac 97 4a 7e 2e 17 26 53 ef 9f 59 22 5d 3a 28 |...J~..&S..Y"]:(| 0d2d6330 95 f6 5e c6 7c 1d 04 8e 53 ef d7 69 e1 0a d3 73 |..^.|...S..i...s| 0e077d30 c7 18 fa 82 4c e3 9f 78 53 ef 57 49 fb 1b 64 f9 |....L..xS.WI..d.| 0f213830 6e 1d 0b c1 85 d4 07 e5 53 ef f1 2c d7 2e b1 19 |n.......S..,....| 11ff3230 4c 22 10 55 c5 95 fa 7d 53 ef 57 22 6a 25 46 3d |L".U...}S.W"j%F=| The "candidates" at 00000430 and 08000030 are really part of a superblock. The others are not. Phil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
