Contact Us - Advertising Info - Rules - LQ Merchandise - Donations - Contributing Member - LQ Sitemap - Main Menu Linux Forum Android Forum Chrome OS Forum Search LQ That is because it has mdadm. Thanks for the replies. Given the hints solve the puzzle Furniture name for waist-high floor-sitting shelf cabinet thing Find the "unwrapped size" of a list Lab colleague uses cracked software. http://rinfix.com/cannot-open/ubuntu-mdadm-cannot-open-device-or-resource-busy.html
You will have to register before you can post in the forums. (Be aware the forums do not accept user names with a dash "-") Also, logging in lets you avoid 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 After that, and rebooting, the devices under /dev/mapper are gone (which is fine - I don't need to access the Windows NTFS partitions on Linux): $ ls /dev/mapper/ control And, most Top gerald_clark Posts: 10595 Joined: 2005/08/05 15:19:54 Location: Northern Illinois, USA Re: mdadm: Cannot open /dev/hdb: Device or resource busy Quote Postby gerald_clark » 2009/03/05 14:34:05 This error often occurs when
Assigning only part of a string to a variable in bash TSA broke a lock for which they have a master key. But if you use /dev/sdb1, then it's only going to wipe the first partition, keeping all the information you want to get rid of. dmraid indeed was the culprit, as mdadm's Wikipedia entry suggested. Table_file contents may be supplied on stdin.
Using fdisk both sda and sdb still look correct though. I do not understand why sdb was busy... Help is truly appreciated! Mdadm Cannot Open /dev/sda1 No Such File Or Directory I don't know why there are four of these arrays though. $ ls /dev/mapper/ control isw_dgjjcdcegc_ARRAY1 isw_dgjjcdcegc_ARRAY3 isw_dgjjcdcegc_ARRAY isw_dgjjcdcegc_ARRAY2 Resolution: It was the mdadm Wikipedia article that pushed me in the
So now our script goes something like: $ udevadm control --stop-exec-queue $ mdadm --create /dev/md0 --run --level=0 --raid-devices=4 ... $ udevadm control --start-exec-queue And we now Mdadm Device Is Busy Skipping Exaples: askubuntu.com/questions/252795/convert-running-system-to-raid-5 (In your case it is RAID 10 and not RAID5, but the idea is the same: Create the new array and format it, copy data, fix bootloader to boot Related 8Raid1 with active and spare partition1degraded mdadm RAID5 array7Resize underlying partitions in mdadm RAID12Why make a partition at all for mdadm/raid?0mdadm: Reactivating RAID6 array after improper shutdown1mdadm, Device or resource Offline data collection capabilities: (0x5b) SMART execute Offline immediate.
I thought it may have been an option to simply dd sda1 and sda2 over to sd[bcdefgh]1 and sd[bcdefgh]2 then create the arrays even with sda1 and sda 2 mounted, I http://superuser.com/questions/101630/creating-a-raid1-partition-with-mdadm-on-ubuntu Some system info: Ubuntu Karmic 64-bit Linux 2.6.31-17-generic - Johannes Best regards, Johannes Adv Reply February 13th, 2010 #2 johj View Profile View Forum Posts Private Message Visit Homepage 5 Cannot Open /dev/sdb Device Or Resource Busy Find More Posts by pruneau 07-20-2008, 02:31 PM #3 disbeliever LQ Newbie Registered: Dec 2005 Location: Holland Distribution: Slackware 11.0 fluxbox-1.0rc2 (2.6.18-custom), ubuntu 8.04-server Posts: 11 Original Poster Rep: Mdadm Add Device Or Resource Busy Both provide software RAID, but..
Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. weblink In a way different RAID systems indeed disturbed each other... Then format the filesystem on the new array volume and copy all data from /dev/sda1 to it. I just upgraded to Centos5 and now my hard drives are acting all weird.My partitions exsist, but can't be accessed by the mdadm tool. Mdadm Create Cannot Open Device Or Resource Busy
also: [email protected]:~# mdadm --assemble --scan mdadm: No arrays found in config file or automatically and: [email protected]:~# mdadm --assemble --force /dev/md0 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 mdadm: forcing event count in SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always Returned the drives to the Linux system and I could use them again. navigate here Is mutating static local variables twice in the same expression undefined behavior?
unmount the md (might be good to use the -l flag for lazy unmount Code: umount -l /dev/md0 2. I would imagine you should just offline the raid device (sdb) first, then remove from the array, not just kill off md0..... How is Anti Aliasing Implemented in Ray Tracing? Man Mdadm We don't have dmraid installed on our Linux images (Ubuntu 12.04 LTS / Alestic cloud image) so there's no possible conflict there.
Reply With Quote 22-Aug-2013,12:32 #2 ghostintheruins View Profile View Forum Posts View Blog Entries View Articles Busy Penguin Join Date Jul 2008 Posts 260 Re: How do I delete a RAID You should be using raid5 or for an array of that size, raid6 so you can handle one or two disks failing. While it didn't provide the solution, the post put me on the right track by mentioning udev and it took only a few more minutes to narrow down on the solution: his comment is here see full explanation: superuser.com/questions/101630/… –Jonik Jan 29 '10 at 10:07 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up
So I started googling for "mdadm create race" and I finally found a post that tipped me off. are comma-separated. Before I freshly installed ubuntu I used dd to write all hds so that mdadm --examine would not show anything. It's a disk _you_ designate as the receptacle of the informations if another one fails. - which command did you use to wipe those hd ?
share|improve this answer answered Apr 13 '13 at 14:05 Hennes 4,14011225 Ah ok thanks, usually I would not be doing it this way at all, the server was taken Reply With Quote 22-Aug-2013,12:40 #3 malcolmlewis View Profile View Forum Posts View Blog Entries Visit Homepage View Articles Administrator Join Date Jun 2008 Location Podunk Posts 20,984 Re: How do I I don't know how the RAID for Windows works, but in that case it shouldn't be a problem on Linux side, at any rate. –Jonik Jan 28 '10 at 12:41 I'll try what the Wiki article suggests. –Jonik Jan 29 '10 at 8:17 add a comment| 3 Answers 3 active oldest votes up vote 5 down vote accepted Finally some progress!
To check that a removal worked, useit should report an unreadable partition table. See the follow-up question I posted. 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. Not the answer you're looking for?