From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: Brocken Raid & LUKS Date: Thu, 21 Feb 2013 14:45:12 -0500 Message-ID: <51267948.60505@turmel.org> References: <5123A1CC.2000003@heisl.org> <5123EF45.6080405@heisl.org> <5123F7C7.7000406@turmel.org> <5123FB71.3060509@heisl.org> <5124196F.6090000@turmel.org> <512516C2.3010105@heisl.org> <5125184A.6040707@turmel.org> <5125C6E9.4050802@heisl.org> <5125EBFD.3050802@heisl.org> <51262137.3040609@turmel.org> <51262CE0.3000809@heisl.org> <51263785.2010001@turmel.org> <51263D9D.1080002@heisl.org> <51263F7E.7040207@turmel.org> <5126421E.3040702@turmel.org> <51264C18.8000201@heisl.org> <51264E26.9050100@turmel.org> <51264EBF.9090000@heisl.org> <51264F7F.3020508@turmel.org> <512650A1.7070103@heisl.org> <51265132.7070706@turmel.org> <512656B5.4090505@heisl.org> <51265824.4030407@heisl.org> <51265B0B.9020108@turmel.org> <51265DA7.2030209@heisl.org> <512660B9.8090609@turmel.org> <5126629A.1090002@heis l.org> <51266360.9030402@turmel.org> <5126678D.9030101@heisl.org> <51266D73.5020700@turmel.org> <51267192.6090205@heisl.org> <51267467.9040603@turmel.org> <512675A6.1000801@heisl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <512675A6.1000801@heisl.org> Sender: linux-raid-owner@vger.kernel.org To: Stone Cc: linux-raid List-Id: linux-raid.ids 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 /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