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April 4, 2024 15:25
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How to update fbsd bootcode
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On the contrary, because of the switch from FreeBSD ZFS to | |
OpenZFS, the bootcodes needs to be updated! It's unfortunate | |
that no message is displayed 8-( | |
The problem is, finding out which bootcode needs to go where etc. | |
It depends if your system boots from the EFI partition or | |
from the freebsd-boot partition. And how your system is | |
partitioned. | |
I have some notes for gpart filesystems: | |
- check with | |
gpart show | |
This system has both (!): | |
partition 1 is efi | |
partition 2 is legacy boot | |
=> 40 4000797280 ada0 GPT (1.9T) | |
40 409600 1 efi (200M) | |
409640 1024 2 freebsd-boot (512K) | |
410664 984 - free - (492K) | |
411648 18874368 3 freebsd-swap (9.0G) | |
19286016 3981510656 4 freebsd-zfs (1.9T) | |
4000796672 648 - free - (324K) | |
- To update the EFI: | |
mount -t msdos /dev/ada0p1 /mnt | |
cd /mnt/efi/boot | |
mv BOOTx64.efi BOOTx64.efi-old | |
cp /boot/loader.efi BOOTx64.efi | |
cd / | |
umount /mnt | |
- To update the legacy boot: | |
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 2 ada0 | |
- If efi is not mountable ? create a msdosfs: | |
newfs_msdos /dev/ada0p1 | |
mount -t msdos /dev/ada0p1 /mnt | |
mkdir /mnt/efi/boot | |
cp /boot/loader.efi /mnt/efi/boot/BOOTx64.efi | |
umount /mnt |
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