From mboxrd@z Thu Jan 1 00:00:00 1970 From: o1bigtenor Subject: Re: Advice requested Date: Mon, 2 Nov 2015 22:03:06 -0600 Message-ID: References: <56367C33.6060703@turmel.org> <5637842D.1070000@turmel.org> <5637BCE4.8000006@turmel.org> <5637FBAC.8000900@turmel.org> <56380690.5030600@turmel.org> <56381406.7070608@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <56381406.7070608@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: Phil Turmel Cc: Linux-RAID List-Id: linux-raid.ids On Mon, Nov 2, 2015 at 7:55 PM, Phil Turmel wrote: > 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. OK - - - can this be broken down into specific commands. gparted then do I use o for a new empty GUID partion or? (I see using 'r' gives some other options - - - still not clear should I be using 'e' how do I specify the partition starting at sector 2048?)q > > 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. This sounds really good. Is there any way that I could get series of commands for doing these different things? (This is no wheres close to what I do regularly!!!) Thanking you for your assistance!! Dee > > 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 >