Good afternoon, I'm asking for help in recovering damaged metadata after a 220V drop on the server, when the power was restored and the server booted up, I got an error in the Proxmox panel
then booted from LiveCD debian mounted corrupted metadata and tried to repair
however, I don’t know how to specify the transaction id and, most importantly, what id - where to find it
Kernel Version: Linux 5.15.30-2-pve #1 SMP PVE 5.15.30-3 (Fri, 22 Apr 2022 18:08:27 +0200)
PVE Manager Version: pve-manager/7.2-3/c743d6c1
Code:
Check of pool pve/data failed (status:1). Manual repair required!then booted from LiveCD debian mounted corrupted metadata and tried to repair
Code:
root@debian:/home/user# lvchange -ay /dev/pve/data_tdata
Do you want to activate component LV in read-only mode? [y/n]: y
Allowing activation of component LV.
root@debian:/home/user# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
vm-102-disk-0 local-hdd-volume1-pve1 -wi-a----- 50.00g
vm-103-disk-0 local-hdd-volume1-pve1 -wi-a----- 250.00g
vm-104-disk-0 local-hdd-volume1-pve1 -wi-a----- 150.00g
vm-108-disk-0 local-hdd-volume1-pve1 -wi-a----- 20.00g
vm-109-disk-0 local-hdd-volume1-pve1 -wi-a----- 160.00g
vm-110-disk-0 local-hdd-volume1-pve1 -wi-a----- 20.00g
base-101-disk-0 pve Vri---tz-k 20.00g data
base-105-disk-0 pve Vri---tz-k 15.00g data
data pve twi---tz-- <858.97g
root pve -wi-a----- 30.00g
snap_vm-106-disk-0_Installed pve Vri---tz-k 15.00g data
snap_vm-106-disk-0_Installed_CspAndVipnet pve Vri---tz-k 15.00g data
swap pve -wi-a----- 8.00g
vm-100-disk-0 pve Vwi---tz-- 20.00g data
vm-100-disk-1 pve Vwi---tz-- 60.00g data
vm-102-disk-0 pve Vwi---tz-- 20.00g data
vm-103-disk-0 pve Vwi---tz-- 30.00g data
vm-104-disk-0 pve Vwi---tz-- 25.00g data
vm-106-disk-0 pve Vwi---tz-- 15.00g data snap_vm-106-disk-0_Installed_CspAndVipnet
vm-107-disk-0 pve Vwi---tz-- 20.00g data
vm-108-disk-0 pve Vwi---tz-- 30.00g data
vm-109-disk-0 pve Vwi---tz-- 35.00g data
vm-110-disk-0 pve Vwi---tz-- 20.00g data
root@debian:/home/user# vgs
VG #PV #LV #SN Attr VSize VFree
local-hdd-volume1-pve1 1 6 0 wz--n- 3.27t <2.64t
pve 1 17 0 wz--n- <930.50g <16.00g
root@debian:/home/user# ls -la /dev/mapper/ | grep -v vm
total 0
drwxr-xr-x 2 root root 240 Mar 29 17:48 .
drwxr-xr-x 19 root root 3700 Mar 29 17:48 ..
crw------- 1 root root 10, 236 Mar 29 17:35 control
lrwxrwxrwx 1 root root 7 Mar 29 17:48 pve-data_tdata -> ../dm-2
lrwxrwxrwx 1 root root 7 Mar 29 17:35 pve-root -> ../dm-1
lrwxrwxrwx 1 root root 7 Mar 29 17:35 pve-swap -> ../dm-0
root@debian:/home/user# thin_dump --repair /dev/mapper/pve-data_tdata > repaired.xml
The following field needs to be provided on the command line due to corruption in the superblock: transaction id
root@debian:/home/user# thin_check /dev/mapper/pve-data_tdata
examining superblock
superblock is corrupt
bad checksum in superblock, wanted 2018675394however, I don’t know how to specify the transaction id and, most importantly, what id - where to find it
Kernel Version: Linux 5.15.30-2-pve #1 SMP PVE 5.15.30-3 (Fri, 22 Apr 2022 18:08:27 +0200)
PVE Manager Version: pve-manager/7.2-3/c743d6c1
Last edited: