1 How to regenerate Proxmox / pxvirt EFI

ayakael edited this page 2025-09-04 12:42:24 +00:00

Regenerating EFI involves using proxmox-boot-tool within chroot environment. Most times, just refreshing the EFI is necessary. But when the EFI boot is completely confused, it is worth reinitializing it. To do so, first setup a chroot environment.

1. Boot into the latest Proxmox / pxvirt installation ISO. Latest, as ZFS comptability isn't always guaranteed.
2. Once you see the license agreement form, go to terminal via CTRL+ALT+F2
3. Import rpool under /mnt: zpool import -R /mnt rpool
4. Mount root (canmount should be set as noauto): zfs mount rpool/ROOT/[root name]
5. Bind mount device paths: mount -o bind {/dev,/proc,/run,/sys,/sys/firmware/efi/efivars} /mnt/{/dev,/proc,/run,/sys,/sys/firmware/efi/efivars}
6. Chroot into /mnt: chroot /bin/sh /mnt
7. Run proxmox-boot-tool as necessary. If need refresh, use refresh. If need init, use init /dev/efi-device
8. Reboot