Unable to install proxmox-boot loader during installation of V8.2 on ZFS RAID1

guff666

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Nov 6, 2021
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I've had a problem when I went to update a ZFS based Proxmox V7 node. It was configured with 4 disks as two RAID1 mirrors in a single pool.

The idea was to start afresh with this node and restore the various containers and vms from backups once it was in the cluster

To ensure I had a clean environment, before starting, I used a rescue iso to wipe the labels off of the disks (because I've had problems before if I didn't do this) and I opted to start with just two of the disks in RAID1. Installation proceeded as normal until right at the end, when I got:

Code:
Failed to create EFI Boot variable entry: Input/output error
boot loader setup errors:
- unable to init ESP and install Proxmox-boot loader on '/dev/sda2'

Screenshot 2024-06-08 132502.png

bear in mind that was previously installed with a fresh copy of proxmox v7.

As a double check, I have now successfully installed Proxmox V7.4-1, so it's something explicit to V8.2-1
 
PVE 8.1 has this issue too.
For some reason it cant be installed on a ZFS RAID in UEFI mode. I had this issue last year and the only thing that helped was to use Legacy BIOS
 
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