14.0 with zfs mirror on root - can't uefi boot from second disk

[bram]

Hi all,

I couldn't find much information on this in Google,

I'm hoping someone can shed some light on this and recommend me on what to do next.

I noticed on a FreeBSD server with 14.0 (I can't boot with just the second drive connected (no option in the bios)

As far as I can tell this relates to this, https://reviews.freebsd.org/D42150

Additionally the installer creates gpt/gptboot0 + efiboot0 for the first drive and gpt/gptboot1 + efiboot1 for the second drive.

It was able to fix this with:

newfs_msdos /dev/nda1p1 # format efi partition on second drive

mount_msdosfs /dev/nda1p1 /mnt # mount efi of second drive

cp -r /boot/efi/* /mnt/efi # copy files from first to second drive

efibootmgr -c -L FreeBSD-Disk1 -l /boot/efi/efi/boot/bootx64.efi # give a name that shows up in the bios

efibootmgr -B -b 0001 # remove uefi os

gpart modify -l efiboot0 -i1 /dev/nda0 # without this the system goes into single user mode because it searches for efiboot0, not efiboot1

Swap drive cables and reboot

efibootmgr -c -L FreeBSD-Disk2 -l /boot/efi/efi/boot/bootx64.efi

efibootmgr -B -b 0001 # remove another uefi os from the list

I can both from both drives with the other one disconnected from the computer.

Replacing a drive required

gpart backup nda0 | gpart restore -F /dev/nda1 # copy partition table

gpart modify -l efiboot0 -i1 /dev/nda1

newfs_msdos /dev/nda1p1

mount_msdosfs /dev/nda1p1 /mnt

cp -r /boot/efi/* /mnt/efi

zpool replace nda1p4 nda1p4

On a second server my efibootmgr naming was gone after swapping drives/cables.

In fstab there is this line:

/dev/gpt/efiboot0               /boot/efi       msdosfs rw              2       2

causing the system to go into single user mode when booting from the secondary drive after the efi files were copied, the system would boot just fine without this line what is the reason to keep this mounted by default ?

I tried a fresh install with FreeBSD 14.1 and here I have the same issue, the system is able to boot from the first drive but can't boot with the first drive removed.

thx in advance

Bram