gives a better overview in case the system was switched at one time
from uefi to legacy (or the other way around).
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
most support questions w.r.t. proxmox-boot-tool do have us
asking for `stat /sys/firmware/efi` output anyways
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
if a (legacy) system is booted with proxmox-boot-tool, running
`grub-install` without being aware of the fact can render the system
unbootable (e.g. when letting the early stage point to an incompatible
zpool instead of the ESP).
To prevent this we add a dpkg-diversion [0], which simply checks if
`proxmox-boot-tool status` indicates that proxmox-boot is used and
errors out in that case, and runs the actual grub-install else.
Co-authored-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
This patch adds support for booting non-uefi/legacy/bios-boot ZFS
installs, by using proxmox-boot-tool to copy the kernels to the ESP
and then generate a fitting grub config for booting from the vfat ESP:
* grub is installed onto the ESP and the MBR points to the ESP
* after copying/deleting the kernels proxmox-boot-tool bindmounts the
ESP on /boot (inside the new mount namespace)
* grub-update then manages to generate a fitting config.
Some paths/sanity-checks needed adaptation (to differentiate between
EFI boot and not (based on the existence of /sys/firmware/efi)
The arguments for grub-install are taken from the pve-installer.
The approach is inspired by @avw in our community-forum [0].
[0] https://forum.proxmox.com/threads/zfs-error-no-such-device-error-unknown-filesystem-entering-rescue-mode.75122/post-374799
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
This is mostly in preparation for renaming pve-efiboot-uuids into
proxmox-boot-uuids, but can help in general (since each duplicate uuid
causes excessive disk i/o upon kernel upgrades).
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
currently simply checking if $ESP_LIST exists, and indicating via
the exit status if proxmox-boot-tool is used for booting the system.
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
We will be using the mechanics also for ZFS systems booting with BIOS
legacy boot, and the tool is used also in PMG and PBS.
A symlink is kept in place for compatibility reasons
The hook scripts are marked as conffiles (as all files in /etc) and
are handled by dpkg-maintscript-helper(1) via dh_installdeb(1)
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
