On Mon, 2009-05-11 at 14:22 -0500, Eugene Vilensky wrote: > dmsetup remove <device name> > > on the LV device? > > #dmsetup remove /dev/vgTEST/lvTEST > dm_task_set_name: Device /dev/vgTEST/lvTEST not found > Command failed No, that's just a symbolic link. You want the device in the /dev/mapper directory named as VgName-LvName. E.g. on a machine with a VG named system containing an LV named lv00: # ls -l /dev/system/lv00 lrwxrwxrwx 1 root root 23 Mar 30 10:04 /dev/system/lv00 -> /dev/mapper/system-lv00 # dmsetup remove /dev/system/lv00 dm_task_set_name: Device /dev/system/lv00 not found Command failed # dmsetup remove system-lv00 The arguments to dmsetup are documented in its man page. When you remove an LV like this you'll be left with a dangling symlink in the /dev/VgName directory. You can clean this up with rm if you wish although leaving it lying around won't cause any zblems. > on the mpath device? > > # dmsetup remove /dev/mpath/mpath1 > device-mapper: remove ioctl failed: Device or resource busy > Command failed You need to remove the LV first. Regards, Bryn. > _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
