Hi, after a power failure, I am no longer able to boot into proxmox with ZFS root. I believe it was on proxmox boot tool and not grub but I'm not 100% sure. With CSM off in bios, no boot options are showing and with legacy enabled the ZFS disks show but will fail to boot (sees them as non bootable drives). I tried proxmox rescue boot but it just says that it was unable to find boot disk automatically. Any ideas on what I should try to get it booting again?
[SOLVED] ZFS root failing to boot after power failure
- Thread starter dfgyuri
- Start date
I have experienced consumer SSDs begin empty after an unexpected power loss. SSDs more data around in the background all the time, especially when trimming, and power loss can be fatal. Can you boot your system with the Proxmox installer in Rescue boot mode? Or boot using a Linux Live CD like GParted Live or Ubuntu 25.04 installer? Can you see the partitions of your drives (using
gdisk -l /dev/YOUR_DEVICE and/or zpool status and/or lsblk)?
Last edited:
All is fine with your zpool? Then try something like a GRUB rescue except that you probably need to do it for systemd-boot and/or proxmox-boot-tool.
after following this https://pve.proxmox.com/wiki/Recover_From_Grub_Failure#ZFS_based_systems and running
proxmox-boot-tool reinit I'm now booting into grub, but not proxmox. proxmox-boot-tool status shows the following
update: the above was due to booting into the USB in legacy mode, fixed it by booting in UEFI, nuking and reiniting the partition. Booting without issue now.
proxmox-boot-tool reinit I'm now booting into grub, but not proxmox. proxmox-boot-tool status shows the following
update: the above was due to booting into the USB in legacy mode, fixed it by booting in UEFI, nuking and reiniting the partition. Booting without issue now.
Last edited: