Hello Bryn, On Wednesday 22 November 2006 23:29, Bryn M. Reeves wrote: I think that you speak about LVM2. I use RHES 3.5 and the version of lvm are lvm-1.0.8-14. > Hello Martial, > > You should be able to remove a PV from a volume group with vgreduce even > when it is inactive, as long as the PV is still present on the system: > > [root ~]# vgchange -an s0 > 0 logical volume(s) in volume group "s0" now active > [root ~]# vgreduce s0 /dev/loop1 > Removed "/dev/loop1" from volume group "s0" vgchange -an VG_vobs vgchange -- volume group "VG_vobs" successfully deactivated vgreduce VG_vobs /dev/emcpowera1 vgreduce -- ERROR: volume group "VG_vobs" doesn't exist > > If the PV is no longer present, this won't work though: > > [root ~]# losetup -d /dev/loop1 > [root ~]# vgreduce s0 /dev/loop1 > Couldn't find device with uuid 'Tzx4n9-iA60-yu3U-9oRe-R0jh-RBb4-Sw8EmF'. > Couldn't find all physical volumes for volume group s0. > Couldn't find device with uuid 'Tzx4n9-iA60-yu3U-9oRe-R0jh-RBb4-Sw8EmF'. > Couldn't find all physical volumes for volume group s0. > Volume group "s0" doesn't exist > > In this case, you can make the volume group consistent again with > "--removemissing": I don't have this option. I can't do that > > [root ~]# vgreduce --removemissing s0 > Couldn't find device with uuid 'Tzx4n9-iA60-yu3U-9oRe-R0jh-RBb4-Sw8EmF'. > Couldn't find all physical volumes for volume group s0. > Couldn't find device with uuid 'Tzx4n9-iA60-yu3U-9oRe-R0jh-RBb4-Sw8EmF'. > Couldn't find all physical volumes for volume group s0. > Couldn't find device with uuid 'Tzx4n9-iA60-yu3U-9oRe-R0jh-RBb4-Sw8EmF'. > Wrote out consistent volume group s0 > > Be aware though that if the PV you want to remove was actually in use > you risk loosing whatever data was stored on it by this method - if > possible get the PV back on the system and use the normal vgreduce. > > If this doesn't help then it would be useful to know what versions of > LVM2 and device-mapper you are using and what distribution this is on. -- Martial Paupe Kudelski Group [D] +41 21 732 04 55 [E] martial.paupe<AT>nagra.com _______________________________________________ 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/
