20.10.2025 20:33, Demi Marie Obenour wrote:
On 10/19/25 11:36, Feli Flitzberg wrote:
Hi, long time watcher, first time poster. If the bootloader supports the
Discoverable Partitions Specification, all that's needed is the correct
partition GUID assigned to every partition. After that, you don't need to pass
any partitions or use /etc/fstab as the bootloader will read the disk it came
from to mount everything. The only major limitation is that your bootloader
partition MUST live on the same disk as root and usr, otherwise they won't be
found. Hope this helps!
How can the OS know which block device the system was booted from?
Bootloader compliant with BLI sets the LoaderDevicePartUUID EFI
variable. Otherwise I assume it possible to get the current boot entry
number from the BootCurrent EFI variable and parse the corresponding
BootXXXX entry.
