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Created March 5, 2024 17:25
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Install ZFSBootMenu on Proxmox
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readme.md

Install ZFSBootMenu on Proxmox

Requirements:

  • you must have installed proxmox with root on zfs - aka when you installed proxmox you installed it on a zfs filesystem

mount /dev/nvme0n1p2 /boot/efi/

mkdir /boot/efi/EFI/zfsbootmenu/

cd /boot/efi/EFI/zfsbootmenu/

wget https://github.com/zbm-dev/zfsbootmenu/releases/download/v2.3.0/zfsbootmenu-release-x86_64-v2.3.0-vmlinuz.EFI -O zfsbootmenu.efi

cd /boot/efi/loader/entries

nano zfsbootmenu.conf

title   ZFSBootMenu
efi     /EFI/zfsbootmenu/zfsbootmenu.efi

Finally to also set the commandline options as applied to host (adjust to match host) - set the following zfs attribute: (the middle and final bit "rpool/ROOT/pve-1" is your dataset - use "zfs list" and use the one where your root is mounted)

zfs set org.zfsbootmenu:commandline="root=ZFS=rpool/ROOT/pve-1 boot=zfs amd_iommu=on iommu=pt pcie_acs_override=downstream,multifunction" rpool/ROOT/pve-1

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