[SOLVED] Proxmox does not boot anymore: grub rescue "error: no such device / unknown file system"

[kiloxpor]

I was just working on something and decided to attach an ssd to a free slot in my supermicro superserver machine where I am running Proxmox, while it was still on. After I rebooted, Proxmox does not come up anymore and I am greeted by a Grub rescue screen. I have tried to reboot several times leaving everything as it was before the problem but no success in bringing Proxmox back to life.

Here is the screenshot:


I would really appreciate any hints as to what is going on and how to fix it.

Thanks a lot in advance.

 

[H4R0]

Grub does not support booting ZFS 2.0 yet. If you did a zpool upgrade follow https://pve.proxmox.com/wiki/ZFS:_S...iring_a_System_Stuck_in_the_GRUB_Rescue_Shell

 

[kiloxpor]

Thanks for the reply and the info... It was actually an issue with the boot order being messed up following my attempt to attach the new ssd, which I fixed easily in the bios... I just do not understand why this happened but well it was easy to fix.