Hey, that works! Thank you very much Luca. For other people's benifit that may find this in a search, here is what I did: This assumes that you ALREADY have a disk file called lvmdisk1 with lvm partitions on it # losetup /dev/loop0 lvmdisk1 # vgscan # vgcfgbackup -f TemplateVG.cfg TemplateVG Now edit TemplateVG.cfg file and change the IDs for the volume group, physical volume and logical volumes too. I made it easy by just incrementing the last character by one, a becomes b, x becomes y, etc. Keep track of what ID you gave the physical volume. # vgchange -a n TemplateVG Now run pvcreate using the --uuid option and use the NEW uuid that you generated an changed to in the VG config file. # pvcreate -ff --uuid CFhjSe-EqSc-pnDz-4UcP-ylxh-hcY6-oV6BGR --restorefile TestDiskVG.cfg /dev/loop2 It will complain that it couldn't find the physical volume with the specified uuid, but it will still create the physical volume. # vgcfgrestore -f TemplateVG.cfg TemplateVG # vgchange -a y TemplateVG That's it, now you can change the volume group name if that's what you need to do. You should try mounting one of the logical volumes now to make sure the data is still in tact. On Fri, Sep 08, 2006 at 03:35:10PM GMT, Luca Berra [bluca@comedia.it] said the following: > On Fri, Sep 08, 2006 at 12:55:06PM +0000, Mark Krenz wrote: > > So is there a way to change the UUID of a physical volume and volume > >group? > > > i'd try with vgcfgbackup, sed, pvcreate, vgcfgrestore. > > L. > > -- > Luca Berra -- bluca@comedia.it > Communication Media & Services S.r.l. > /"\ > \ / ASCII RIBBON CAMPAIGN > X AGAINST HTML MAIL > / \ > > _______________________________________________ > 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/ -- Mark S. Krenz IT Director Suso Technology Services, Inc. http://suso.org/ _______________________________________________ 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/
