I have some virtual machines which were clones of the same original disk image, which contained some LVM volumes. When I clone these, I end up with multiple LVM volumes (albeit on different hosts) which have the same 'unique' ID. Is there any way I can get LVM to change the UUID of an existing volume?
pvchange --uuid /physical/volume/path vgchange --uuid /volume/group/name
you can't vgchange --uuid on a vg with active logical volumes. Aug 2, 2016 at 15:00
vgimportclone /physical/volume/pathhelped me, at least a bit.– Ned64May 21, 2017 at 18:19
@Ned64 this should be the accepted answer ! works for me.– LiMarMar 11, 2020 at 15:34
@LiMar OK, thanks for the feedback, I wrote an answer. Feel free to vote for it :-)– Ned64Mar 11, 2020 at 16:57
According to its man page, the command
vgimportclone will do the work for you:
This is used for importing a volume group (VG) from a cloned physical volume (PV), e.g. after a snapshot or other duplicated PV.
pvchange was not working for me, it kept avoiding the volume with
WARNING: Not using device /dev/sdc for PV C0s0Wg-HcnQ-LOP3-QwmR-dhSX-4wW1-hRhxm3. WARNING: PV C0s0Wg-HcnQ-LOP3-QwmR-dhSX-4wW1-hRhxm3 prefers device /dev/sdb because device is used by LV. Device /dev/sdc excluded by a filter.
wipefs /dev/sdc was the solution, after which I simply used