The issue is trying to mount a drive that was the primary internal HD for a system with a failed motherboard. The disk was built using FC3, and has a a /boot partition and one under LVM control. When I try to mount this disk as a USB drive from a CentOS system, I can't mount the LVM-controlled partition because it has the same LVM volume/group name as the disk in the CentOS system. I have seen several discussions of this, and I want to make sure that what I think needs to be done is indeed as complicated as it sounds. There appear to be two options: (1) rename the LVM volume on the CentOS primary drive (I'll call this the internal HD) or (2) rename the LVM volume on the now-USB drive. In a perfect world, one would be able to just rename the now-USB drive's LVM volume/group/whatever names so that it differs from those on the current system and move forward from there. It sounds like this simple approach is impossible, and that one of the following must be done. 1. Rename the volume on the internal HD. This can be done using vgrename, but then you have to make sure you catch all references to the original name in various system files such as fstab and grub.conf. I've also seen references to having to "expand, modify, and repackage" initrd. I have no idea how to do this, and it sounds like a "go there carefully" sort of thing. I also worry if there's other files I don't know about that must be changed or I've just "bricked" my CentOS system. Not going here. 2. Rename the volume on the USB HD. This requires me to power down the CentOS system, open the box, disconnect the internal HD, boot to the installation CD in rescue mode, use lvm commands to rename the USB HD, and then put everything back together again. This sounds overly complicated, but necessary. So, have I understood all this correctly? Are these the only two ways in which this problem can be surmounted, and if so which is the safest. I'm thinking that I want to rename the internal HD to something other than the default setting anyway, but I really don't like the idea that I might miss changing the name in some important file or script that will bite me later. _______________________________________________ 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/
