After upgrading to PVE9 our backup server (hardware copy of main server which gets VM backups rsynced to it) would not boot. I managed to get it back by changing the BIOS CSM to enabled, enabling legacy boot, and setting the boot drive to the non-uefi entry in the boot priorities list.
After reading about some of the potential upgrade issues I am not sure why this occurred. I verified I didn't have systemd-boot installed and never saw any warnings for it while running the pve8to9 script. I also have the grub-efi-amd64 package installed. I'm not using zfs for the boot drive.
Running proxmox-boot-tool status shows 'E: /etc/kernel/proxmox-boot-uuids does not exist.'
I'm thinking that maybe initializing the existing EFI partition with proxmox-boot-tool might fix the issue, but I am gun shy since this server is remote and I am not certain my current legacy boot will be safe after running the tool. I don't believe these machines ever used proxmox-boot-tool.
Our main server is still on PVE8, which is booting UEFI as our backup server was, and I want to make sure I understand this issue before I attempt an upgrade on it. I have checked the main server and from everything I'm seeing I fully expect the same issue to occur on it when we attempt the upgrade.
Any ideas what happened and what I should do to fix it. I thought we had a pretty basic config on these machines as I don't think we've done anything special to the boot config since the original installation, but something appears to be unusual enough to cause this problem.
TIA
After reading about some of the potential upgrade issues I am not sure why this occurred. I verified I didn't have systemd-boot installed and never saw any warnings for it while running the pve8to9 script. I also have the grub-efi-amd64 package installed. I'm not using zfs for the boot drive.
Running proxmox-boot-tool status shows 'E: /etc/kernel/proxmox-boot-uuids does not exist.'
I'm thinking that maybe initializing the existing EFI partition with proxmox-boot-tool might fix the issue, but I am gun shy since this server is remote and I am not certain my current legacy boot will be safe after running the tool. I don't believe these machines ever used proxmox-boot-tool.
Our main server is still on PVE8, which is booting UEFI as our backup server was, and I want to make sure I understand this issue before I attempt an upgrade on it. I have checked the main server and from everything I'm seeing I fully expect the same issue to occur on it when we attempt the upgrade.
Any ideas what happened and what I should do to fix it. I thought we had a pretty basic config on these machines as I don't think we've done anything special to the boot config since the original installation, but something appears to be unusual enough to cause this problem.
TIA