Mdadm Cannot Read Superblock
Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. How to decline a postdoc interview if there is some possible future collaboration? Try file -s -L /dev/mapper/* if there is anything of use. –frostschutz Aug 2 '14 at 19:48 | show 7 more comments 2 Answers 2 active oldest votes up vote 5 mdadm: /dev/sdi1 is identified as a member of /dev/sdb1, slot 5. have a peek at this web-site
Join Date Mar 2011 Location Raleigh, NC Posts 8 Apologies for duplication of info above. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the I examined the good superblocks to make sure I knew how to recreate the array exactly (i.e. I tried xfs_check on the unmounted but assembled array which now gives me: xfs_check: unexpected XFS SB magic number 0x494e41ed xfs_check: read failed: Invalid argument xfs_check: data size check failed cache_node_purge: http://unix.stackexchange.com/questions/148062/mdadm-raid-doesnt-mount
No Md Superblock Detected
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My new motherboard has inexplicably cleared three of the super blocks, and I am now left with only one intact superblock. Note: both the Marvell 88SE9123 (622) and rocketrai622a (rr62x) had the same I/O errors below right before the drives were kicked out of the system. The /dev devices have changed in my system and It looks like the superblocks are incorrect on the disks. Mdadm: Md Device /dev/md0 Does Not Appear To Be Active. My drive order changed (sda is no longer my OS drive, it's now sdf) My raid drives are now sda/sdb/sdc/sdd/sde and I'm recovering the raid.
deck- View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by deck- 03-30-2009, 05:08 PM #2 mostlyharmless Senior Member Registered: Jan 2008 Distribution: Mdadm No Recogniseable Superblock Note that destroying the log may cause corruption -- please attempt a mount of the filesystem before doing this. Anybody have any suggestions? Skyrim: How to stop NPCs from picking up dropped items How to decline a postdoc interview if there is some possible future collaboration?
Raid 1 was not working after reboot and I tried the following command: mdadm --create /dev/md0 --metadata=1 --level=1 --raid-devices=2 /dev/sda1 /dev/sdb1 this did not work at first but it did after Mount Md0 If you'd like to contribute content, let us know. This is exactly my issue: http://vip.asus.com/forum/view.aspx?...Language=en-us (other articles) https://koitsu.wordpress.com/2009/07...6g-controller/ http://www.extremetech.com/article2/...2350340,00.asp http://opensolaris.org/jive/thread.j...ssageID=490180 in RHEL6 it requires compilation of a kernel module, I found a good post here: https://help.ubuntu.com/community/RocketRaid Reply With Quote 03-13-2011,09:32 rr62x:[0 1 f] failed to send 1st FIS rr62x:[0 1 ] start port hard reset (probe 10).
Mdadm No Recogniseable Superblock
After that I can give you the proper device names for a complete mdadm --examine. I found another interesting guide on recovering the raid superblock that works because mdadm is quite intelligent but I don't think it will help you. No Md Superblock Detected share|improve this answer answered Nov 29 '11 at 13:26 ppetraki 4,2591246 add a comment| up vote 1 down vote I've had the same issue before, and I didn't document it (and Mount Mdadm Array Find More Posts by samborambo 07-19-2010, 11:34 PM #4 rblampain Member Registered: Aug 2004 Location: Western Australia Distribution: Debian 7 Posts: 989 Original Poster Rep: Thank you both, here
mdadm: no RAID superblock on /dev/sdg mdadm: /dev/sdg has wrong uuid. http://usableflash.com/mdadm-cannot/mdadm-cannot-start-dirty-degraded-array.php mdadm: /dev/md1 has been started with 2 drives. rr62x:[0 0 f] failed to send 1st FIS rr62x:[0 1 ] start port hard reset (probe 5). So stuff is still there. Wrong Fs Type, Bad Option, Bad Superblock On /dev/md0
There are a few howto on the internet but none that I can follow from start to finish without improvising at some stage. For clarification here is the hardware I had issues with. This only took about 30-60 minutes, probably because all the data was good and it was just reading from each disk and not writing. 6. Source Mount the filesystem to replay the log, and unmount it before re-running xfs_check.
You are currently viewing LQ as a guest. Mdadm Recover Superblock your /boot partition is on /dev/md127 seems like. asked 1 year ago viewed 1076 times active 1 year ago Related 1Help rebuilding raid1 array?2Raid Issues Cannot Boot and Getting Superblock Errors0Can't mount RAID after upgrade1Raid10: how to tell which
mdadm: no RAID superblock on /dev/sdg mdadm: /dev/sdg has wrong uuid.
mdadm: cannot open device /dev/sda: Device or resource busy mdadm: /dev/sda has wrong uuid. Join Date Mar 2011 Location Raleigh, NC Posts 8 Hey Folks, As an update, I had no problems with the Addonics ADSA3GPX1-2E (SiL Based). I was just holding onto some sliver of hope that I might be able to recover some of the data, no matter how small. How To Mount /dev/md0 You may have to register before you can post: click the register link above to proceed.
Once I got over my fear of accidentally destroying the data, it didn't really take me long. For the time being I will have another level of redundancy (daily backup script to another hard drive) until I can feel confident that I will not have this problem again. I recreated the array with the "--assume-clean" option. 4. have a peek here [email protected]:~/dd_rescue# [email protected]:~/dd_rescue# [email protected]:~/dd_rescue# [email protected]:~/dd_rescue# mdadm --detail /dev/md2 mdadm: md device /dev/md2 does not appear to be active.
Reply With Quote 03-15-2011,07:09 AM #20 sadsfae View Profile View Forum Posts Private Message What is this storage? rblampain View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by rblampain 07-19-2010, 01:59 PM #2 apnicservices LQ Newbie Registered: Jul 2008 Location: Offline #6 2011-06-27 18:41:56 NSB-fr Member Registered: 2010-01-23 Posts: 45 Re: [Solved] Cannot Assemble Raid 1 Array - Superblock Error Just to be clear, have you :1) created your RAID1 array Why "silver-tongued" for someone who is convincing?
It is currently rebuilding and estimated to finish in 16hrs. EDIT: a bit more info. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed As you say, it works well.
Join Date Oct 2011 Posts 4 Originally Posted by ddrueding RAID5 only protects against a single drive failure. Again, i can create the array but still can't mount it. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the [email protected]:~# mdadm --examine --scan ARRAY /dev/md127 UUID=0464b5c4:d777ef5e:17b64c46:2e5e61c3 ARRAY /dev/md1 UUID=fca66a1e:c6aba1f7:ace437e0:ae545265 ARRAY /dev/md2 UUID=46c22b6d:dc9668a4:13d0e329:c7b8b0ca AND [email protected]:~# mdadm --detail /dev/md126 mdadm: cannot open /dev/md126: No such file or directory AND [email protected]:~/dd_rescue# mdadm --detail
mdadm: /dev/sdf1 is identified as a member of /dev/md0, slot 2. I am seen in darkness and in light, What am I? I see that listed as one of your steps. I was expanding my raid 6 array when one drive failed during reshaping.