Recovering PBS datastores from a system disc crash

[Fathi]

Hi,
I have a PBS with three discs, one for the PBS operating system itself and two others discs configured as independent data stores.
The operating system disc broke. I replaced it with a new one on which i have installed PBS 2.4 and now, i would like to "import" the two datastores with all the backeps the contain in this new installation.
I have mounted one this ext4 formatted discs in the new installation, and found they seem to be healthy.
Backups have not been encrypted.
I could eventually mount the old broken system disc and try to recover some config files, but which ones ?
I am thinking as if my discs were tapes and the tape system broke; so, naturally it could be possible to rewind them on another tape drive and recover the data they hold.
TIA
Fathi.

 

[Neobin]

https://forum.proxmox.com/threads/datastore-recovery.72835/post-325491

 

[Fathi]

https://forum.proxmox.com/threads/datastore-recovery.72835/post-325491

Thank you very much @Neobin

 

[Fathi]

https://forum.proxmox.com/threads/datastore-recovery.72835/post-325491

I have recovered the /etc/proxmox-backup directory and copied all .cfg files to the newly installed system disk.
Now, I am getting errors when trying to visualize any of the datastores contents:
unable to open chunk store 'local-sdb-sata3-1T' at "/mnt/datastore/local-sdb-sata3-1T/.chunks" - No such file or directory (os error 2)
unable to open chunk store 'long-term' at "/mnt/datastore/long-term/.chunks" - No such file or directory (os error 2

Should I try to copy the content of /mnt/datastore from the previous broken disk as /mnt/datastore doesn't even exist on the new installation ?

 

[Fathi]

Created /mnt/datastore and missing subdirectories.
Mounted each subdirectory to the corresponding disk partition (data store).
Now, i can see my previous backups.
This is a temporary measure. There are probably other things missing.
Original /etc/fstab from previous installation doesn't contain any reference to the datastores. How were they mounted at boot ? so I could reproduce that behaviour.

 

[Fathi]

Found two other files under /etc/systemd/system. It seems that the datastores are mounted as services.
The system files have strange characters in the file names.