The assembly of the array worked, seemingly, without a hitch, but mounting it failed with it not able to find an EXT4 file system. Obviously i don't know ext3 filesystem internals -- too much to learn, so little time… My point is: would there be any value in storing the list of superblock locations offline?Thanks, Not the answer you're looking for? It looks like this Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208 Pick a superblock and run sudo e2fsck -b block_number /dev/xxx replacing the block_number navigate here
In US, is it a good idea to hire a tax consultant for doing taxes? UNIX is a registered trademark of The Open Group. If the device is valid and it really contains an ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck Here's where you can find the Root RAID Doc How-To denniz View Public Profile View LQ Blog View Review Entries View HCL Entries Visit denniz's homepage! http://bbs.archbang.org/viewtopic.php?id=4466
It autodetected it as ext2, but I want it ext3, so: mkfs.ext3 /dev/md0 8. Ss 0:00 /sbin/mdadm --monitor --pid-file /run/mdadm/monitor.pid --daemonise --scan --syslog 7869 pts/8 S+ 0:00 grep --color=auto mdadm $ what could be my problem here, I don't quite follow: $ dmesg | tail The first thing was just doing an e2fsck.
sudo e2fsck -b block_number /dev/xxx Now reboot, and your superblock should be fixed. Any idea what could be wrong? Let me know how it goes🙂 52 z3rin (@z3rin) on March 28, 2012 said: I am working through the same thing, does it say anything that Ubuntu 11.04 also gives me How To Recover Superblock In Linux This I do not understand.
Have tried all things suggested in comments, still no luck, just get these errorsfreenas:/mnt# mke2fs /dev/ad1 mke2fs 1.41.14 (22-Dec-2010) /dev/ad1: Operation not permitted while setting up superblockordumpe2fs /dev/ad1 dumpe2fs 1.41.14 (22-Dec-2010) Unable To Set Superblock Flags Is Marine Grade Plywood the same as Baltic Birch Plywood? Thanks, Dave richardjhMarch 8th, 2010, 11:10 PMIt looks like the raid devices are already assembled, which makes it a bit easier. I dont know if the update made any changes in them, but i doubt that.This morning I did install the lts kernel, after all, it got me outa problems before.But not
any guidance would be much appreciated. The Superblock Could Not Be Read Or Does Not Describe A Correct Ext2 There's instructions on how to fix it: http://linuxexpresso.wordpress.com/2010/03/31/repair-a-broken-ext4-superblock-in-ubuntu/ share|improve this answer answered Oct 9 '14 at 13:27 cerr 2781620 add a comment| Your Answer draft saved draft discarded Sign up There are so many different causes for filesystem corruption that cases can be very individual. Privacy - Terms of Service - Questions or Comments UbuntuCommunityAsk!DeveloperDesignDiscourseHardwareInsightsJujuShopMore ›AppsHelpForumLaunchpadMAASCanonical current community chat Ask Ubuntu Ask Ubuntu Meta your communities Sign up or log in to customize your list.
If that doesn't work, repeat, using the next block number 58 Anil on January 8, 2013 said: e2fsck -b 32768 /dev/sdb1 e2fsck 1.41.14 (22-Dec-2010) e2fsck: Bad magic number in super-block while Password Debian This forum is for the discussion of Debian Linux. E2fsck Bad Magic Number In Superblock Perhaps it's a clue. Bad Magic Number In Superblock Resize2fs The ‘process ID for the mount process is ‘ps -A | grep -i mount'.
Now cat /proc/mdstat doesn't show any md0 devices running. check over here My best advice is to head over to the Ubuntu Forums, set up an account if you don't have one, and state your case in the General Help section. It was nicely explained and worked in few minutes. denniz View Public Profile View LQ Blog View Review Entries View HCL Entries Visit denniz's homepage! Dumpe2fs: Bad Magic Number In Super-block While Trying To Open
The DIsk Utility shows the 3TB HD as healthy. I have been at it for a week now. And we're back at the point of all the errors mentioned above. his comment is here ToniT View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by ToniT 09-09-2004, 12:40 PM #13 denniz Member Registered: Apr 2004 Location: amsterdam
asked 5 years ago viewed 5367 times active 5 years ago Blog Stack Overflow Gives Back 2016 Developers, Webmasters, and Ninjas: What’s in a Job Title? Bad Magic Number In Superblock While Trying To Open /dev/sda2 Drives are identical so could there be someway to copy superblock from /dev/sda6 to /dev/sdb6 or should i try to mdadm -create command keep fingers crossed that it doesn't destroy data. How do I buy you a cup of coffee? 110 evidex on June 8, 2012 said: Glad to hear I helped!
There are no other words to say thank you. three-letter codes for countries Do progress reports/logging information belong on stderr or stdout? This piece of blog is solid gold. Ext2fs_open2: Bad Magic Number In Super-block You could then run system-config-network in text mode, and once things are somewhat fixed, run startx to use the GUI system-config-network version with a more sophisticated interface.
It worked for my 250GB SATA drive. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. A Page of Puzzling How can I keep the computers on my spaceship from dying after a hull breach? http://netfiscal.com/bad-magic/ext4-fs-sdb1-unable-to-read-superblock.html yes Free blocks count wrong for group #362 (32254, counted=32248).
If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck One can also mount an already visible directory tree elsewhere: mount -bind olddir newdir or move a subtree: mount -move olddir newdir A device can be given by name, say /dev/hda1 The easiest way to carry all this out, seeing as your computer probably won't boot at this stage, is to download and burn a copy of Parted Magic. What happens when you run command "mdrun"?
If I put the hard disk back into T100, it boots fine. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. It's most likely that the Ubuntu install has completely re-formatted the drive. Opts: user_xattr,commit=0 # [ 35.369796] EXT4-fs (sdc5): re-mounted.
Ignore error? just wanna thank u…🙂 65 evidex on September 22, 2011 said: No problem, glad to hear it helped! 66 christine on September 26, 2011 said: well… i did as was written