On Thu, 2005-06-23 at 22:52 +0900, HYUN-CHUL KIM wrote: > How to change a PV uuid in LVM? > > One among three hard disks constituting a LVM logical volume has > failed. > When trying boot without the broken hard disk, following error message > come out. > Couldn't find uuid with 'c3r7Sx-aTpd-JHFp-iT3c-FOiK-g7JC-uj10VK' > > And I found another PV uuid '7I7F4S-pzze-dgjr-0HKP-ccX4-qG1d-SOu2ki' > from a new hard disk. > > I think the PV uuid is recorded in somewhere of LVM config so that we > typed pvdisplay, it comes out. > Now, I think if I can change the PV uuid from 'c3r7Sx-...' into > '7I7F4S-...' in LVM, I can manage to boot and to recover data from the > two still-healthy hard disks. > > How can I change the PV uuid information recorded in the LVM? or Where > are the PV uuids recorded? The man pages explain what needs to be done. You need to make sure you have a backup file of your VG config prior to the disk failure. eg: /etc/lvm/backup/volGroup00 "vgdisplay --partial --verbose" to show the UUID's of PV's that are no longer preset "pvcreate --restorefile filename --uuid uuid <device>" to restore the PV. filename = /etc/lvm/backup/volGroup00 uuid = the uuid of the PV that failed "vgcfgrestore --file filename <volGroupName>" to restore the VG metadata --Sean _______________________________________________ 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/
