On 10/30/06, brianmas@highstream.net <brianmas@highstream.net> wrote:
I did a straight up mirroring of a drive doing dd if=/dev/hda of=/dev/sda where the src is an ide drive and target a sata drive and not unexpectedly it can't find the root device on boot. Typing out the error message ... [snip] Reading all physical volumes this may take a while ... No volume groups found Unable to find Volume Group "VolGroup00" [snip] I used a rescue disc distro and used dd to extract info subtible for vgcfgrestore, after which I did some other finagaling with vgchange and I can mount the volume and view the data on it, so it's there, vgscan/pvscan and lvscan all show it ... but as mentioned boot it's just not picked up on boot so it can be mounted as '/'. I thought I fixed it with the vgcfgrestore (changing /dev/hda2 to /dev/sda2) but obviously not ... any guidance is appreciated. thank you, brian
Ignoring LVM issues, I believe I've done this in the past with traditional partitions. IIRC, all I did was add a root=/dev/sdaX parameter on my grub boot command line, and then use that to boot single-user mode and edit my /etc/fstab to reference the correct device. Not sure how LVM would change that. FYI: I personally don't use LVM on my boot and root partitions. Greg -- Greg Freemyer The Norcross Group Forensics for the 21st Century _______________________________________________ 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/
