FreeBSD 14.1 and UEFI boot ignores bootme flag

From: Daniel Braniss <danny_at_cs.huji.ac.il>
Date: Tue, 13 Aug 2024 06:10:34 UTC 
hi,
	my disk has 2 root partitions, and once I switched to UEFI boot, can’t boot the second partition:
(the hardware is a bit old, Dell PowerEdge R710 with bios from 05/22/2018)

store-08# gpart show -l
=>        40  5857345456  mfid0  GPT  (2.7T)
         40       81920      1  efi  (40M)
      81960     8388608      2  root  (4.0G)
    8470568     8388608      3  root0  [bootme]  (4.0G)
   16859176     8388608      4  d1  (4.0G)
   25247784     8388608      5  d2  (4.0G)
   33636392  5823709104      6  zfs  (2.7T)

it only boots from partition 2.

so is there any magic?

thanks,
	danny