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-   -   Can't remove lv with dmsetup - "Device or resource busy" (http://www.linuxquestions.org/questions/linux-software-2/cant-remove-lv-with-dmsetup-device-or-resource-busy-741185/)

computerjack 07-19-2009 11:06 AM

Can't remove lv with dmsetup - "Device or resource busy"
 
I am trying to remove a volume group on a single drive that contains a single logical volume. This is on openfiler which I believe is CentOS based.

dmsetup info vg2-backup shows an open count of 1.

Try running dmsetup remove vg2-backup but it fails because it says device or resource busy.

How do I find the process that is tying this up so I can kill it and remove the lv and then volume group?

computerjack 07-19-2009 11:28 AM

Figured it out on my own but wanted to share the solution for anyone that happens across this with the same problem.

Ran cat /proc/mounts and saw /dev/vg2/backup was mounted. Did umount /dev/vg2/backup and then ran dmsetup info vg2-backup. Open count was now 0 and I was able to successfully run dmsetup remove command. Followed that up with lvremove and vgremove.


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