On Sat, 12 Jan 2019 at 07:55, Stefan Bethke <[email protected]> wrote:
[...]
> The UEFI man page has a good explanation of which files are involved in 
> booting:
> https://www.freebsd.org/cgi/man.cgi?query=uefi&sektion=8&manpath=freebsd-release-ports
>
> I mounted the ESP and copied /boot/boot1.efi to 
> /boot/efi/EFI/BOOT/BOOTX64.EFI. Surprisingly, the new boot1.efi is much 
> smaller than what I had before (according to the timestamp from November), 
> but using that, booting seems to be restored.
>
> # grep efi /etc/fstab
> /dev/ada0p2             /boot/efi       msdos   rw,noauto       0       0
> # mount /boot/efi
> # ls -l /boot/efi/EFI/BOOT/BOOTX64.EFI /boot/efi/EFI/BOOT/bak/BOOTX64.EFI
> -rwxr-xr-x  1 root  wheel   81920 Jan 11 18:43 /boot/efi/EFI/BOOT/BOOTX64.EFI*
> -rwxr-xr-x  1 root  wheel  410112 Nov 25 16:27 
> /boot/efi/EFI/BOOT/bak/BOOTX64.EFI*

While the uefi(8) man page suggests that boot1.efi should be used,
loader.efi can also substituted. I believe the release images use
loader.efi instead of boot1.efi, as it's slightly more efficient.

Cheers.
-- 
Jonathan Chen <[email protected]>
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