Reinstallation and reuse of old vm drive

[theuser125]

Hi,

I got a really unlucky day my boot drive have been corrupted and won't start properly anymore (old server from the dumpyard with a ass raid card thanks XD) . So i reinstalled it all but i kept the old vm drive.
i've seen poste that said the conf files are in the /etc/pve/qemu-server but the thing is my corruption was during a vm creation i think and the whole pve folder have been wiped so now i got vm disk without config. (My vm's are on a separated nvme drive so their clean, i can't boot from that drive hate this dumb ass server and now my new boot drive is on an optane on a usb to nvme dongle)

So is there a way to recreate vm with existing vm drive cause i couldn't find anything about what commande or config file i should modify and in what way i should do it.


here's all my vm and i know that the one's that are only disk-0 are containers and the others are vm so i couldn't find any way in the web interface to add existing drive and i'm not that experience in proxmox (2 month).

I really need those data cause i got a windows server with an AD on it and it's a pain in the butt to get it working again without it XD. So whatever the cost in time i need it.

PS: first time posting and as a frenchy my written english is not that great sorry. next time i will do backups.

 

[Kingneutron]

https://github.com/kneutron/ansitest/blob/master/proxmox/proxmox-recover-vm-disks-without-backup.sh

Especially you want Proxmox Backup Server on separate hardware for deduplication and other features.
.
https://github.com/kneutron/ansitest/tree/master/proxmox

Look into the bkpcrit script, point it at external disk / NAS, run it nightly in cron. Would have saved all your VM/LXC config, including storage and network setup.

 

[gfngfn256]

You should have (or maybe should have had) fully restorable backups on some other media, to be able to restore all your VMs & LXCs - backups are for exactly this situation.

If you do not have backups - you could still recreate the VMs (as best as you can from memory) & then re-apply their respective disks.
With LXCs - AFAIK I don't think you can just do the above procedure. You will probably need to find a mechanism to "copy over the data" from the original disks to the new ones. Or maybe some renaming shenanigans will help you. I simply have no experience with this.

Whatever you do - when you get everything working you must MAKE FULL BACKUPS OF ALL VMs & LXCs!