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Mdadm Cannot Open /dev/sdb1 No Such File Or Directory


Any ideas? imhotep531August 8th, 2011, 07:34 PMNo I wasn't kidding I was just pointing out that this error I keep getting seems to be erroneous. Read more... See fstab(5). # # proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda1 during installation UUID=b4b76f90-2a6c-4b89-a5e8-b015583f1138 / ext4 errors=remount-ro 0 1 have a peek at this web-site

mdadm: no RAID superblock on /dev/sdc mdadm: /dev/sdc has wrong uuid. and if they lost ... good work getting it figured out; the question was well-put and this answer is a nice write-up of the situation. –quack quixote Jan 29 '10 at 23:10 Yeah, I It makes sense, that is interesting. http://superuser.com/questions/101630/creating-a-raid1-partition-with-mdadm-on-ubuntu

Mdadm: Cannot Open /dev/sdc1: Device Or Resource Busy

Pelle (per-anders-andersson) wrote on 2010-02-19: #37 The kernel does'nt acess any of /etc/mdadm/mdadm.conf /etc/mdadm.conf /etc/default/mdadm nowadays. mdadm --zero-superblock /dev/sda Install an MBR onto the new disk so that it is bootable. You should then be able to test via a LiveCD. Mounting /dev/md0 was the last thing I did before I rebooted the system.

Again this is right after reinstalling. Do humans have an ethical obligation to prevent animal on animal violence? Or, honestly, just ignore it—it's not really a problem, and should go away the next time you reboot. Mdadm Assemble coffee412July 25th, 2011, 11:14 PMWhen I run partprobe, I get a series of responses that look like this: [ 165.358250] end_request: I/O error, dev fd0, sector 0 Warning: Unable to open

So I added a line to /etc/rc.d/rc.local (at the bottom) to mount it when I login. Mdadm: Cannot Open /dev/md/0: No Such File Or Directory Now write the changes to disk and exit fdisk. up vote 1 down vote I've had the same issue before, and I didn't document it (and was a while ago). cat /proc/mdstat: Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : inactive sdd[1](S) 1953514496 blocks unused devices: This is a problem.

Do I mount /dev/md_d0 or do I mount /dev/md_d0p1? Mdadm Scan I believe I need to recreate the superblocks and UUIDs somehow, but was reluctant to barrel into something as to not lose a bunch of data. The add-on card and it's two 500GB disks were not detected (as far as I can tell). Related 1Testing my raid array / is my mdadm raid working OK?1MDADM Raid 0 won't mount: one drive has bad superblock2Raid Issues Cannot Boot and Getting Superblock Errors3mdadm warning (system unbootable)

Mdadm: Cannot Open /dev/md/0: No Such File Or Directory

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 http://www.linuxquestions.org/questions/linux-software-2/mdadm-cannot-open-dev-md-0-no-such-file-or-directory-4175444956/ Top kitsaras Posts: 7 Joined: 2012/09/18 18:21:59 Re: Crashed HDD RAID5 In Centos Help needed Quote Postby kitsaras » 2012/09/18 22:45:27 more [email protected] ~ # parted /dev/sdaCode: Select allGNU Parted 2.3

man e2fsck doesn't necessarily say it's dangerous but there might be another, saver way to fix the superblock...? http://usableflash.com/cannot-open/mdadm-cannot-open-dev-sda1-device-or-resource-busy.php Here on Dapper the mdadm init scripts fail. After a fresh reinstallation of Ubuntu Server 10.04.2 LTS I have done nothing to this machine except configure ssh and ddclient, both of which are working flawlessly. Why are wavelengths shorter than visible light neglected by new telescopes? Mdadm Remove Array

Notice the partition type is 83 not fd. coffee imhotep531August 3rd, 2011, 06:29 PMFirst in answer to your question, yes previously I edited fstab to look like this (the last line is what I added): # /etc/fstab: static file Ian Oliver (hvy4-idbo) wrote on 2009-05-16: #18 This bug is now over three years old so has been ignored for many versions of Ubuntu. http://usableflash.com/cannot-open/mdadm-super1-x-cannot-open-dev-sdb1-device-or-resource-busy.php Skyrim: How to stop NPCs from picking up dropped items Different meanings of の? If a wondrous item was dynamically created as slimy, can I remove the smell with prestidigitation?

Yes, there's a work-around, but it's a pretty nasty > thing to have to do on a production server. > > -- > mdadm cannot assemble array as cannot open drive Man Mdadm You've already got the dmsetup ls output but the ls will help clarify and link the dm-3, 5 & 6 from your second paste. You don't want the controller interfering between the OS and the drives.

Are there any other steps needed to confirm normal functionality?

So I formatted it to ext4. apport-collect -p linux 27037 Also, if you could test the latest upstream kernel available that would be great. Normally it has UUID=some:thing:ran:dom instead of devices=. Mdadm Status Is the ARRAY definition for the old array in there?

Setup partitions on the replacement disk. Kinda like Star Wars here! :) imhotep531August 3rd, 2011, 04:13 PMA long time ago in a server far far away... Use it. http://usableflash.com/cannot-open/mdadm-cannot-open-dev-md0.php I began writing only on this page because goggle saw that it was right here this shit was most written about.

I would change your mount point to the /mnt directory. What's the output of mdadm --detail --scan? –frostschutz Aug 2 '14 at 18:13 1 Also those md12[567] you have are on device mapper devices. I go into the card's BIOS and make sure no arrays were in existence, but the BIOS doesn't have an ON/OFF setting for RAID. Remove them from your running config with this: mdadm --stop /dev/md12[567] Now try using the autoscan and assemble feature.

Today I restarted the server and now its telling me that /dev/md0 does not exist when I just created it yesterday. So we've got a clean slate. I got it up and running by just using --build: mdadm --build /dev/md0 --level=0 --raid-devices=2 --auto /dev/hd[eg]1 Launchpad Janitor (janitor) wrote on 2008-08-11: This bug is now reported against the 'linux' Two people just reproduced the bug in the most recent and second most recent distro within the last 24 hours!

Once that's done then you'll need to boot up and partition the new disk with exactly the same layout as the other ones then tag /dev/sdX1 as partition type 0xfd (RAID Under /dev/mapper/ there are some device files that, I think, somehow match the 3 Windows RAID partitions (sd{a,b}1 through sd{a,b}3). In Revelation 19:16, of which kings is Jesus king? We have a patch that is supposed to address this issue (I believe it is present in the stock kernel), but it seems like it is not working.

Therefore after doing the above lets have the system re-read the partition tables with the command below: partprobe Now lets try and assemble the raid again: mdadm --create /dev/md0 --level=1 --raid-devices=2