I have just upgraded a machine running Redhat 9 to Whitebox Linux 3. Unfortunately, it appears to have killed/destructively reconfigured my LVM setup. The original config consisted of: /dev/hda1 - Regular ext3 Linux partition mounted as /boot /dev/hda2 - LVM partition containing: vg_system - VG with several LVs containing the OS. A RAID5 md device, /dev/md0, consisting of: /dev/hdc1 /dev/hde1 /dev/hdg1 /dev/hdi1 /dev/hdk1 /dev/md0 was configured as a single VG, vg_data. This VG had about 5 LVs. Before installing the new system, I 'vgexport'ed vg_data as indicated in the LVM HOWTO (http://www.tldp.org/HOWTO/LVM-HOWTO/recipemovevgtonewsys.html): (Unmount all relevant filesystems) 'vgchange -an vg_data' 'vgexport vg_data' I "upgraded" by replacing /dev/hda with a new drive and installing WBL straight onto the new drive. The LVM config I used for the new drive was: /dev/hda1 - Regular ext3 Linux partition mounted as /boot /dev/hda2 - LVM partition containing: vg_wbl - VG with a single LV containg the OS Unfortunately, the VG that was on /dev/md0 - vg_data - appears to have disappeared and /dev/md0 appears to have been "merged" into vg_wbl. The commands for importing the old VG do not give the results I was expecting: [root@terminus root]# pvscan pvscan -- reading all physical volumes (this may take a while...) pvscan -- ACTIVE PV "/dev/md0" of VG "vg_wbl" [447.14 GB / 447.14 GB free] pvscan -- WARNING: physical volume "/dev/hde1" belongs to a meta device pvscan -- WARNING: physical volume "/dev/hdc1" belongs to a meta device pvscan -- ACTIVE PV "/dev/hda2" of VG "vg_wbl" [37.16 GB / 25.40 GB free] pvscan -- total: 4 [484.32 GB] / in use: 4 [484.32 GB] / in no VG: 0 [0] [root@terminus root]# I do not think /dev/md0 should be a PV of vg_wbl.... Unsurprisingly, the next step of the import didn't work: [root@terminus root]# vgimport vg_data /dev/md0 vgimport -- ERROR "pv_read(): multiple device" reading physical volume "/dev/md0" [root@terminus root]# I'd appreciate any help people can offer recovering my data. It would appear the 470Gb VG that was on /dev/md0 has disappeared in a puff of electrons and /dev/md0 has somehow been "sucked in" to the new vg_wbl VG I created while installing the OS. I'm sure I'll need to provide more info, but I'm unsure as to what it is - please don't hesistate to ask. Regards, CS _______________________________________________ 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/
