When there is nothing set up on /boot, /boot/efi or /efi, try to find the $BOOT partition checking for the XBOOTLDR or ESP partition GUIDs. Prefer XBOOTLDR as per BLS. Fixes https://github.com/systemd/systemd/issues/26644
When there is nothing set up on /boot, /boot/efi or /efi, try to find the $BOOT partition checking for the XBOOTLDR or ESP partition GUIDs. Prefer XBOOTLDR as per BLS. Fixes https://github.com/systemd/systemd/issues/26644