recovering from VGDA loss
Hi,
I was running lvm with one PV [/dev/hdb3], making up one GV
[/dev/data], which was completely allocated to one LV [/dev/data/homes]. My root was a separate harddisk [/dev/hda1]. Hda is now gone, and so is my /etc, where my VGDA was.
Is there a way for me to get at the data that is still stored on /dev/hdb3 (I am running slackware linux 9; linux-2.4.20, lvm-1.0.6)?
When I run pvscan I get the following:
root@ved:~# pvscan -v pvscan -- reading all physical volumes (this may take a while...) pvscan -- walking through all physical volumes found pvscan -- inactive PV "/dev/hdb3" is associated to unknown VG "data" (run vgscan) pvscan -- total: 1 [13.64 GB] / in use: 1 [13.64 GB] / in no VG: 0 [0]
This suggests I run vgscan...
root@ved:~# vgscan -v vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d" vgscan -- creating empty "/etc/lvmtab" and "/etc/lvmtab.d" vgscan -- reading all physical volumes (this may take a while...) vgscan -- scanning for all active volume group(s) first vgscan -- reading data of volume group "data" from physical volume(s) vgscan -- ERROR "vg_read_with_pv_and_lv(): current PV" can't get data of volume group "data" from physical volume(s) vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created vgscan -- WARNING: This program does not do a VGDA backup of your volume group
...
vgimport segfaults on me when I try to import the VG as shown:
root@ved:~# vgimport -fv data /dev/hdb3 vgimport -- locking logical volume manager vgimport -- checking volume group name vgimport -- checking volume group "data" existence vgimport -- trying to read physical volume vgimport -- checking for duplicate physical volumes vgimport -- checking physical volume name "/dev/hdb3" vgimport -- reading data of physical volume "/dev/hdb3" from disk vgimport -- checking for exported physical volume "/dev/hdb3" vgimport -- checking consistency of physical volume "/dev/hdb3" vgimport -- reallocating memory Segmentation fault
"pvdata -P /dev/hdb3" yields
--- Physical volume ---
PV Name /dev/hdb3 VG Name data PV Size 13.64 GB [28611765 secs] / NOT usable 4.19 MB [LVM: 141 KB] PV# 1 PV Status NOT available Allocatable yes (but full) Cur LV 1 PE Size (KByte) 4096 Total PE 3491 Free PE 0 Allocated PE 3491 PV UUID gdtjvf-8UHQ-SbSF-zmaG-7E0z-5olx-cCQRrI
Any help will be greatly appreciated. I am still sifting through the linux-lvm archive, but I can't seem to find a case that resmbles mine closely enough...
Thanks,
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Daniel Barklon <[email protected]>