Ubuntu :: Mdadm Device Or Resource Busy Using Drives From Old Hardware Raid?
Jan 16, 2010
I am trying to set up a mdadm raid in a new PC that I am building for home theatre. the machine boot just fine from /dev/sdc running ubuntu 9.10 However in gparted /dev/sda and dev/sdb show to be part of /devmapper/sil_ajbicfacbaej Both dev/sda and /dev/sdb were drives that used to be part of a sil hardware raid on a previous machine. I would like to use them as a new mdadm raid on this new machine the old hardware card was really quite slow. the drives are now pluged into the MB and should bw much faster there.
fdisk -l shows this
*********************************************** ~$ sudo fdisk -l
Disk /dev/sda: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
[code]....
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Jun 11, 2011
I rebooted my server and out of nowhere the RAID5 array won't assemble. I've tried everything I could think of to reassemble the thing. I fear that the array is ruined, but I can't imagine how. Here are various bits of information: The simplest failure (with and without partition numbers, which have not been needed in the past):
Code:
richard@nas:~$ sudo mdadm --assemble --verbose /dev/md0 /dev/sd[bcd]
mdadm: looking for devices for /dev/md0
mdadm: cannot open device /dev/sdb: Device or resource busy
[code]...
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Dec 5, 2010
Trying to complete a RAID 1 mirror on a running system and have run into a wall at the last part. I can't add the active physical disk to the mirror. This is on a Centos 5.6 x86_64 system. Anybody know where to go from here? I've tried adding the nodmraid line to the kernel boot line with no luck. Tried removing the logical volumes from LVM, but it won't let me. Not a Linux newbie, but haven't set up a RAID in a long time.
[root@blackbox-0-2-e3-23-72-c5 ~]# mdadm /dev/md1 --add /dev/sda2
mdadm: Cannot open /dev/sda2: Device or resource busy
Here's output from fdisk -l:
[root@blackbox-0-2-e3-23-72-c5 ~]# fdisk -l
Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
[code]....
Here's mdadm.conf:
[root@blackbox-0-2-e3-23-72-c5 ~]# cat /etc/mdadm.conf
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=3c6f7354:b9bfc86a:aa9d0dfb:cdd51bd8
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=31ee55ba:be3b3606:974ac87d:627435a9
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Feb 2, 2010
Something weird happened last night and my raid5 failed. I am trying to re activate it and see if my data is dead or what. When I run mdadm -Asv /dev/md0 I get
Code:
mdadm: looking for devices for /dev/md0
mdadm: cannot open device /dev/dm-1: Device or resource busy
mdadm: /dev/dm-1 has wrong uuid.
mdadm: cannot open device /dev/dm-0: Device or resource busy
mdadm: /dev/dm-0 has wrong uuid.
mdadm: cannot open device /dev/sde2: Device or resource busy
mdadm: /dev/sde2 has wrong uuid.
mdadm: cannot open device /dev/sde1: Device or resource busy
mdadm: /dev/sde1 has wrong uuid.
mdadm: cannot open device /dev/sde: Device or resource busy
mdadm: /dev/sde has wrong uuid.
mdadm: cannot open device /dev/sdd: Device or resource busy
mdadm: /dev/sdd has wrong uuid.
mdadm: cannot open device /dev/sdc: Device or resource busy
mdadm: /dev/sdc has wrong uuid.
mdadm: cannot open device /dev/sdb: Device or resource busy
mdadm: /dev/sdb has wrong uuid.
mdadm: cannot open device /dev/sda: Device or resource busy
mdadm: /dev/sda has wrong uuid.
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Dec 26, 2010
I installed mdadm fine and all and proceeded to run:mdadm --create --verbose /dev/md0 --level=stripe --raid-devices=2 /dev/sda /dev/sdbWith sda being my primary hard drive, and sdb being the secondary.I get this error message upon running the command"mdadm: chunk size defaults to 64Kmdadm: Cannot open /dev/sda: Device or resource busymdadm: create aborted"I don't know what's wrong!
mdstat says:
"Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
unused devices: <none>"
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Apr 13, 2010
All my music editing software programs say, "unable to open device /dev/dsp.Device or resource busy." How can I fix this?
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Apr 4, 2011
I am dual-booting my Gateway laptop with Windows XP Media center Ed. and Ubuntu Notebook 10.10. Several weeks ago I was in the midst of downloading a program from the software center and my system starts running slow (this is in the Ubuntu kernel, not the Windows OS). So I decided to cold-boot the laptop in mid-download. When it boots back up, I get dropped to a grub-rescue menu that states the following:
Code:
Now, the only way I can even remotely use my laptop at the moment is to use my Live USB with the corresponding version of Ubuntu Netbook 10.10 or the Live CD I made with Ubuntu 10.04 on it (I'll explain why I made this below).
I read somewhere that I need to run fsck on my device to try to fix the partition, which btw my Ubuntu partition on my device is /dev/sda5, and before someone suggests it, I even tried using GParted and it doesn't work.
The reason I made a 10.04 CD is because I read somewhere that using the fsck from 10.04 might be more effective (for whatever reason) than the 10.10 fsck version.
I'd also like to add that I'm incapable of booting onto my Windows OS at all, yet I can access the partition from my Live CD/USB. the Ubuntu partition however, I can neither access or mount.
I tried running fsck on the entire device partition table, and I get the following:
Code:
This is me running fsck from the 10.04 version, I get a similar msg from the 10.10 Live USB but replace fsck.ext2 with fsck.ext4 in the message.
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Jan 16, 2010
I am trying to set up a mdadm raid in a new machine that I am building as a home theatre PC. the machine boot just fine from /dev/sdc running ubuntu 9.10 However in gparted /dev/sda and dev/sdb show to be part of /devmapper/sil_ajbicfacbaej
Both dev/sda and /dev/sdb were drives that used to be part of a sil hardware raid on a previous machine. I would like to use them as a new mdadm raid on this new machine the old hardware card was really quite slow. the drives are now pluged into the MB and should be much faster there.
fdisk -l shows this
It produces no errors but does not remove it.
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Mar 3, 2011
My son's netbook with 10.10 netbook remix failed to boot. Using the Live install CD and Gparted I couldn't repair the EXT4 filesytem. The error reported was:
e2fsck : Device or resource busy while trying to open ...
After trying many solutions and web searching I decided to try a different live CD and tried Knoppix 6.4.4
Using the command interface I typed e2fsck -v -f -y /dev/xxxx (xxxx = your device). This worked first time and the machine rebooted without hesitation.
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Dec 3, 2010
I have 4 SATA's in a RAID 5 array using mdadm. Yesterday when I started the computer the RAID did not build/mount. When trying to load the array manually I get the message "mdadm: cannot open device /dev/sd(a,b,c,d)1: Device or resource busy" The drives should not be mounted or in use. The output of the drives in mdadm (mdadm --examine /dev/sd_1) looks normal.
The weirdest part is that rebooting often changes which drive is marked as busy, it can be any of the 4 SATA drives. how to figure out why/what is being used and how to disable it? I have tried searching for similar threads here and in google and haven't found anything similar or that worked.
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Dec 3, 2010
I have 4 SATA's in a RAID 5 array using mdadm. Yesterday when I started the computer the RAID did not build/mount.
When trying to load the array manually I get the message "mdadm: cannot open device /dev/sd(a,b,c,d)1: Device or resource busy" The drives should not be mounted or in use.
The output of the affected drive in mdadm (mdadm --examine /dev/sd_1) looks normal.
The weirdest part is that rebooting often changes which drive is marked as busy, it can be any of the 4 SATA drives. What is being used and how to disable it?
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May 11, 2010
When installing I am selecting the manual partitioning scheme( I have arch on another partition). After I have selected my custom partitions and their mount points it starts the installation but almost immediately it gives the error message that it cannot create a partition on the specified one, as it is used by the OS. I have also tried to create partitions through gparted in the live session but to no avail. I am sure that no partitions are mounted or in use by the system, I have checked this using the mount and fuser commands. I also tried the oem installation but the result the same.
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Sep 8, 2011
After upgrading to fedora 15, I have problems mounting XFS filesystem.
The short tale:
Code:
08:01:38 localhost root>mount -t xfs -vv /dev/sdb1 /data/disks/old
mount: /dev/sdb1 already mounted or /data/disks/old busy
08:01:39 localhost root>fuser /data/disks/old
08:01:41 localhost root>lsof /data/disks/old
08:01:44 localhost root>xfs_repair -t 1 /dev/sdb1
xfs_repair: cannot open /dev/sdb1: Device or resource busy
08:01:48 localhost root>fuser -mu /dev/sdb1
08:02:08 localhost root>dmesg | tail -n 5
[1655779.759764] SGI XFS Quota Management subsystem
[1659275.905756] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled
[1659275.908745] SGI XFS Quota Management subsystem
[1659389.154986] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled
[1659389.156519] SGI XFS Quota Management subsystem
Device is not mounted, and directory is not in use, it has just been created. There is nothing in log files that could remotely point the cause. After removing device (echo 1 > /sys/block/sdb/device/delete) and reattaching it, disk started working.
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Mar 31, 2015
Using debian testing.
Pulseaudio got installed by default here during installtion. Since I don't want it I first ran "systemctl disable pulseaudio", "pulseaudio --kill", then without rebooting I use mpd with alsa alone and it worked fine.
But then i rebooted, and now all applications, mpd, mpv, chromium etc just says that alsa returns with "Device or resource busy", tried rebooting again with no effect.
The soundcard appears as card 1 according to the output of "aplay -l", and defined that card 1is suposed to be default with this in "/etc/asound.conf":
Code: Select allpcm.!default {
type hw
card 1
}
ctl.!default {
type hw
card 1
}
It occurred to me that there might be an issue with permissions to the soundcard so I ran "ls -l /dev/snd"
Code: Select alldrwxr-xr-x 2 root root 80 Mar 31 03:27 by-path
crw-rw----+ 1 root audio 116, 8 Mar 31 03:27 controlC0
crw-rw----+ 1 root audio 116, 2 Mar 31 03:27 controlC1
crw-rw----+ 1 root audio 116, 12 Mar 31 03:27 hwC0D0
crw-rw----+ 1 root audio 116, 7 Mar 31 03:27 hwC1D0
[Code] ....
My user is a part of the audio group:
Code: Select alluid=1000(roberth) gid=1000(roberth) groups=1000(roberth),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),108(netdev),111(scanner)
As far as I can tell, that looks fine unless I am missing something?
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Jul 19, 2011
So I cant seem to be able to install fedora 15. I think it is the disk. I have windows 7 already installed (and would like to keep it) It was installed on the end of the hard drive leaving a 100 GB chunk in the center of the drive open and unformatted (this may be the problem). Anyway I used the live cd and tried to format the unformatted partition to exf but it gives me this error
Code:
Error creating partition: helper exited with exit code 1: In part_add_partition: device_file=/dev/sda, start=105906176, size=104752742400, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
Entering MS-DOS parser (offset=0, size=500107862016)
MSDOS_MAGIC found
found partition type 0xee => protective MBR for GPT
Exiting MS-DOS parser
Entering EFI GPT parser
GPT magic found
partition_entry_lba=2
num_entries=128
size_of_entry=128
Leaving EFI GPT parser
EFI GPT partition table detected
containing partition table scheme = 3
got it
got disk
new partition
added partition start=105905664 size=512
committed to disk
Error doing BLKPG ioctl with BLKPG_ADD_PARTITION for partition 2 of size 105905664 at offset 512 on /dev/sda: Device or resource busy
Do I have to reinstall windows for this to work or is there something I can try to do.
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Feb 14, 2011
I have an audio recorder that doubles as a music player. It can play WAV files. So I put in some WAV files and they are out of order, even if they are named numerically. Read somewhere about a little CLI software called fatsort so I installed. The device is located at /dev/sdc. So naturally I write fatsort /dev/sdc, it says something about permission. So sudo fatsort /dev/sdc. Thing is, it says:
Code: sort_fs: Device or resource busy! If I "eject" it (unmount) then it says something about cannot read boot sector or headers. On Windows there is FAT Sorter. It does not work in WINE. So every time I put something in, I have to get to a Windows computer to sort it. It seems like fatsort is the only program that sorts FAT systems in Ubuntu/Linux.
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Jun 16, 2010
I've upgraded my squeeze box to linux kernel 2.6.32-5. But it shows mounting "here is the uuid of / " on /root failed: Device or resource busy while booting.Here is the menuentry of linux kernel 2.6.32-5.
[code]....
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Dec 5, 2010
The error message I keep getting during mounting is:-
device-mapper: remove ioctl failed: Device or resource busy
This is from ane external USB HDD I use as a backup device. I've tried formatting it as ext4 ane encrypting it from the command line
# mkfs.ext4 /dev/sdc1
# cryptestup luksFormat /dev/sdc1
which run without errors but an attempt to mount throws up the above error as well as saying - you must specify the file type (tried that) - and fails to mount. I've tried using YaST to format and encrypt it which throws up the same error when I run mount but actually does actually mount the filesystem Googling around has brought up info saying that it's probably a race condition brought on by invalid udev rules. I've got a (mostly) working system and the udev rules documentation leaves more confused than when I started.
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Apr 10, 2011
I'm currently running Ubuntu Maverick - 2.6.32-30-generic. I recently bought a Garmin eTrex Vista H, which connects via usb (from my reading, it looks like older versions connected over serial). Well, like so many before me, I can't seem to write to or read from the device via gpsbabel.Originally tried to read anything from the device (I have one waypoint in there) via:
Code:
gpsbabel -i garmin -f usb:
It returned "Found no Garmin USB devices." I then tried turning on the eTrex. Doing the same while locating satellites just does nothing - I have to escape from the command in terminal. Trying again produces the error:
Quote:
Claim interfaced failed: could not claim interface 0: Device or resource busy
After doing some research, I unblacklisted and then reblacklisted garmin_gps. I also went into
Code:
/etc/udev/rules.d/51-garmin.rules
to verify that the contents were:
Quote:
SYSFS{idVendor}=="091e", SYSFS{idProduct}=="0003", MODE="666"
as directed in this . Everything seemed to be correct.I then followed some other advice found here and created the policy under /etc/hal/... Still no luck!
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Mar 1, 2010
When I try to suspend to RAM my Fedora 12 system (2.6.31.12-174.2.22.fc12.x86_64), Screen goes blank for about 15 seconds, and then comes back as if nothing happened. I see the following error in /var/log/pm-suspend.log
[Code]....
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Feb 10, 2011
I have a little problem with my RHEL5.5 IA64. I mounted a Windows directory with 'mount -t cifs'. After a little while someone else mounted the same windows directory in the same mountpoint. The output from 'mount -v' shows me that the same directory is mounted twice in the same mountpoints. I cannot unmount it, not even with the force option. The error is "Device or resource busy". There are no open files in the shared directory and no one using the directory or subdirectories.
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Mar 11, 2011
I have a 4 disk raid 5 array on my Ubuntu 10.10 box. They are /dev/sd[c,d,e,f].Smartctl started notifying me that /dev/sde had some bad sectors and the number of errors was increasing each day. To mitigate this I decided to buy a new drive and replace it.I have an external 4-bay disk enclosure. I failed /dev/sde via mdadm:
Code:
mdadm --manage /dev/md0 --fail /dev/sde
mdadm --manage /dev/md0 --remove /dev/sde
[code]...
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Apr 24, 2011
Its from a Synology Box with 3 disks, which one is damaged. But this disk wasnt in use.Take a look on the raid-size of 493 GB - and the both available disks with 250GB..)
On the others there were a linear raid. during this damaged disk the synology-device tells me, that the volume was crashed.But it look like, that this disk was not mounted into this volume.Quote:
DiskStation> mdadm --detail /dev/md2
/dev/md2:
Version : 00.90
[code]....
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Nov 30, 2010
I am learning software raid 1 with centos 5.5. I created the raid with out any problems and removed the first drive to check there was no problems and it booted. I have installed the old drive back in the system as hdc and need to resync the drives (used old drive as partitions correct) I thought I could use raidhotadd but id does not seem to exist anymore. how I resync the drives in the array hda primary and hdc secondary using mdadm
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Feb 20, 2011
This is message I get when I try and start itmdadm: /dev/md0 assembled from 2 drives - not enough to start the arrayBelow is the information I've collected about any help on how I can get the raid back up and going to I can get the data off of it would be awesome
sudo mdadm --examine --scan -v
ARRAY /dev/md0 level=raid10 num-devices=4 UUID=91c36708:a7cbb532:5b51dc92:ba008491
devices=/dev/sdd1,/dev/sdc1,/dev/sdb1,/dev/sda1
[code]...
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Mar 25, 2011
I'm having trouble with Ubuntu 10.10 and stable device names. When I installed Ubuntu, the root drive was the only one in the machine; it obviously got /dev/sda.
After the base installation, I installed three additional 2TB drives to make RAID-5 array. Ubuntu renamed the root drive to /dev/sdd. While annoying I lived with it.
After creating a single partition set to "Linux raid autodetect" on each drive, I created the RAID-5 array:
Code:
All was going well until a reboot. When rebooting Ubuntu decided to make the root drive /dev/sda this time and now mdadm --detail /dev/md0 reports:
Code:
How to fix the array and make the device names stable?
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Feb 5, 2011
I am trying to create a new mdadm RAID 5 device /dev/md0 across three disks where such an array previously existed, but whenever I do it never recovers properly and tells me that I have a faulty spare in my array. More-specific details below. I recently installed Ubuntu Server 10.10 on a new box with the intent of using it as a NAS sorta-thing. I have 3 HDDs (2 TB each) and was hoping to use most of the available disk space as a RAID5 mdadm device (which gives me a bit less than 4TB.)
I configured /dev/md0 during OS installation across three partitions on the three disks - /dev/sda5, /dev/sdb5 and /dev/sdc5, which are all identical sizes. The OS, swap partition etc. are all on /dev/sda. Everything worked fine, and I was able to format the device as ext4 and mount it. Good so far.
Then I thought I should simulate a failure before I started keeping important stuff on the RAID array - no point having RAID 5 if it doesn't provide some redundancy that I actually know how to use, right? So I unplugged one of my drives, booted up, and was able to mount the device in a degraded state; test data I had put on there was still fine. Great. My trouble began when I plugged the third drive back in and re-booted. I re-added the removed drive to /dev/md0 and recovery began; things would look something like this:
Code:
user@guybrush:~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdc5[3] sdb5[1] sda5[0]
3779096448 blocks level 5, 64k chunk, algorithm 2 [3/2] [UU_]
[Code]...
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Dec 16, 2009
Got a little problem after the install of Fedora 12. First there was not problem in opening the raid-device, after i tryed to automount it with crypttab and fstab im not longer able to open it.
Here some outputs code...
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Dec 4, 2010
I have an Linksys NSLU2 with four usb harddrives attached to it. One is for the os, the other three are setup as a RAID5 array. Yes, I know the raid will be slow, but the server is only for storage and will realistically get accessed once or twice a week at the most. I want the drives to spin down but mdadm is doing something in the background to access them. An lsof on the raid device returns nothing at all. The drive are blinking non-stop and never spin down until I stop the raid. Then they all spin down nicely after the appropriate time.
They are Western Digital My Book Essentials and will spin down by themselves if there is no access. What can I shutdown in mdadm to get it to stop continually accessing the drives? Is it the sync mechanism in the software raid that is doing this? I tried setting the monitor to --scan -1 to get to check the device just once, but to no avail. I even went back and formatted the raid with ext2 thinking maybe the journaling had something to do with it. There are no files on the raid device, it's empty.
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May 19, 2011
Having problems with external hard drives. I may be wrong, but I suspect they originated with an upgrade to 10.04 last Christmas. Around that time I also started using Amazon's S3 storage system, and, as a consequence, I stopped using my WD 80G external drive, previously used to backup my important files.
A week or so ago I decided to start using the WD drive again. I can't remember exactly what I did, but it wasn't happy - never caused any problems before. When I plug it in, the on-off light as the front keeps flashing on and off, and when I try to remove the drive I get the message: Error unmounting volumne An error occured while performing an operation on "My Book" (Partition 1 of WD 800BB External): The device is busy
Details: Cannot unmount because file system on device is busy Assuming the device had died - it's about 5 years old - I bought a 160G Samsung S-Series drive - my but they do look neat! Unfortunately, this doesn't seem to have solved my problem. I plugged the new drive in, and it happily appeared on my desktop. It seemed a good idea at the time, but I then started to format the drive - using the default option of FAT. All went well at first, but then the format process stopped.
My new Samsung drive now seems to be operating pretty much as the WD device, I can't copy to the drive, and attempts to unmount it generate a response similar to what's happening with the WD drive. Currently, although plugged in, I can't see the drive on my desktop, although it appears under Places. However, when I try to mount the drive, I get the message: Unable to mount SAMSUNG A job is pending on /dev/sdb1
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