[SOLVED] grub rescue : proxmox VE won't boot

[Y@n`]

Hello everyone,

After a power outage, my home Proxmox 5.2 server won't boot anymore. I end up in GRUB rescue saying :

error : file "/boot/grub/i386-pc/normal.mod" not found

As I asked my good friend Google, I tried different things, here in order :

1) On GRUB rescue, using "insmod zfs", that brings up the same error.

2) Booting from a Proxmox VE install media and pick rescue boot :

error : no such device: rpool.
error : unable to find boot disc automatically

3) Using the installation in debug mode brings me this :

zpool import -a
no pools available to import

Since it's just a home server that runned flawlessly so far, it's a very basic configuration and I've never been too in depth on how to troubleshoots things, so please bear with me.

Thanks in advance for any help,
Yannick.

 

[wolfgang]

Hi,
this is a very outdated version of Proxmox VE, and do only support current versions. [1]
But you can use the Proxmox VE iso [2] as live linux.
Just install the iso to an USB stick[3]
Then you can reinstall the grub.[4]

1.) https://forum.proxmox.com/threads/proxmox-ve-support-lifecycle.35755/
2.) https://www.proxmox.com/en/downloads
3.) https://pve.proxmox.com/wiki/Prepare_Installation_Media
4.) https://help.ubuntu.com/community/Grub2/Installing#via_Terminal_Commands

 

[Y@n`]

Hello Wolfgang, thanks for your answer.

You're right, I should check more regularly if there isn't a new version to upgrade to; I'll keep that in mind for the future.

So, I followed your steps, but couldn't mount my /dev/pve/root. I got an error wrong fs type, bad option, bad superblock on /dev/mapper/pve-root.

Since it couldn't get much worse and I didn't have much to lose, I tried to fsck it, and it seems my ext4 filesystem got utterly corrupted. It's now empty with a bunch of recovered block in my lost+found directory.

So now I'll just backup my vm's somewhere and reinstall a brand new PVE, with a little bit of luck, I'll be able to recover them undamaged.