How do I mount logical volumes from a VG of hard disks taken from another computer?

Question

I have two disks with PVs of a volume group with several logical volumes that was created on another computer.

They were not exported with vgexport.

How do I restore the volume group now built into the new computer and mount its logical volumes ?

vgscan only finds the new volume group originally created on the new computer; however pvscan / pvdisplay do find all physical volumes.

vgchange -ay [VG-NAME] does not find the old volume group.

Answer 1

Copied over /etc/lvm/backup/[VG-NAME] from the old disks (or from a backup) to the new system's /etc/lvm/backup directory and ran vgcfgrestore [VG-NAME] and vgchange -ay [VG-NAME].

Now I'm able to mount the logical volumes.