Hello I had LVM up and working great, even on the / filesystem. I had a /dev/hda1 that was a 4 gig filesystem that i tared my distribution to and /dev/hda2 that use to be my / filesystem and /dev/hda3 that was my volume group. I resized /dev/hda1 down to around 30 megs and made /dev/hda2 4+gig. I made /dev/hda1 /boot and had a initrd to turn on LVM and boot to the / filesystem on /dev/rootvg/root_lv. That all worked fine. Until i added /dev/hda2 (now about 4gig) to the volumegroup rootvg. All looked ok when i went to reboot. On the reboot it died in the ramdisk when it ran vgscan. "vgscan -- no volume groups found" I was then stuck with a none bootable machine. I'll save you the long story about the trouble i had making some kind of rescue disk, but i finally got one to work off a cd i had a friend burn for me. Now when i run pvscan i get "pvscan -- inactive PV "/dev/hda3" is associated to an unknown VG (run vgscan) pvscan -- total: 14.4GB / in use 1 [14.4GB] / in no VG 0 [0]" it doesn't see /dev/hda2 that i added to the vg right before reboot, but thats not a problem because there was nothing on it yet anyway. pvscan -vv gives -- Physical volume --- PV Name /dev/hda3 VG Name rootvg PV Size 14.4 GB / NOT usable 3.48 MB [LVM: 135KB] PV# 1 PV Status available Allocatable yes CurLV 6 P ESize (KByte) 4096 Total PE 3685 Free PE 1261 Allocated PE 2424 PV UUID elhLo-Mw5J-8qaE-gN2D-zEYo-Woqh-qH7H5a System Id eli.custom-edge.com993738446 from what i can tell from the archives to do a vgcfgrestore is the next logical thing but it doesn't work for me vgcfgrestore -n rootvg /dev/hda3 vgcfgrestore -- "/etc/lvmconf/rootvg.conf" doesn't exist vgcfgrestore -- a backup for volume group rootvg is not available which makes since because i booted off a rescue disk in a ram disk. vgscan still gives vgscan -- no volume groups found i did find this answer in the archives for a similar problem: > You need to edit the disk signatures and for each PV, insert all the > _other_ PV signatures in the right place. but no explanation on how to do that? Is that what i should be doing? If so how do i do that? If not what can i do to save this box? thanks a ton it will save a lot of hassle if i don't have to reinstall. eli
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