From mboxrd@z Thu Jan 1 00:00:00 1970 From: "JaniD++" Subject: assembly aborted, superblock is missing. (need help!) Date: Sun, 18 Sep 2005 15:27:23 +0200 Message-ID: <008801c5bc54$b9fd57f0$0400a8c0@dcccs> References: <6d5bedd8050915131148b8108a@mail.gmail.com> <200509162258.37730.a1426z@gawab.com> <432D3024.3080302@dtbb.net> <200509181426.33327.a1426z@gawab.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hello list! I have try to switch from 2.6.13 to 14-rc1, but this kernel breaks my device! The problem: # mdadm -A -R -f /dev/md31 /dev/md1 /dev/md2 /dev/md3 /dev/md4 mdadm: no RAID superblock on /dev/md1 mdadm: /dev/md1 has no superblock - assembly aborted md31 is a 8TB raid0 device. the 2. dev: # mdadm -E /dev/md2 /dev/md2: Magic : a92b4efc Version : 00.90.02 UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e Creation Time : Sun Jul 17 19:50:11 2005 Raid Level : raid0 Device Size : 1953583232 (1863.08 GiB 2000.47 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 31 Update Time : Sun Jul 17 19:50:11 2005 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Checksum : 1fd71b51 - correct Events : 0.2 Chunk Size : 32K Number Major Minor RaidDevice State this 1 9 2 1 active sync /dev/md2 0 0 9 1 0 active sync /dev/md1 1 1 9 2 1 active sync /dev/md2 2 2 9 3 2 active sync /dev/md3 3 3 9 4 3 active sync /dev/md4 the 3. dev: # mdadm -E /dev/md3 /dev/md3: Magic : a92b4efc Version : 00.90.02 UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e Creation Time : Sun Jul 17 19:50:11 2005 Raid Level : raid0 Device Size : 1953583232 (1863.08 GiB 2000.47 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 31 Update Time : Sun Jul 17 19:50:11 2005 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Checksum : 1fd71b54 - correct Events : 0.2 Chunk Size : 32K Number Major Minor RaidDevice State this 2 9 3 2 active sync /dev/md3 0 0 9 1 0 active sync /dev/md1 1 1 9 2 1 active sync /dev/md2 2 2 9 3 2 active sync /dev/md3 3 3 9 4 3 active sync /dev/md4 the 4.dev: # mdadm -E /dev/md4 /dev/md4: Magic : a92b4efc Version : 00.90.02 UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e Creation Time : Sun Jul 17 19:50:11 2005 Raid Level : raid0 Device Size : 1953583232 (1863.08 GiB 2000.47 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 31 Update Time : Sun Jul 17 19:50:11 2005 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Checksum : 1fd71b57 - correct Events : 0.2 Chunk Size : 32K Number Major Minor RaidDevice State this 3 9 4 3 active sync /dev/md4 0 0 9 1 0 active sync /dev/md1 1 1 9 2 1 active sync /dev/md2 2 2 9 3 2 active sync /dev/md3 3 3 9 4 3 active sync /dev/md4 but the md1 (the first dev) is this: # mdadm -E /dev/md1 mdadm: No super block found on /dev/md1 (Expected magic a92b4efc, got 56dfa32e) How can I fix this? Can somebody help? Thanks Janos