Re: Corrupted/broken EFI boot partition

Thanks for the confirmation!

- Juan

> On Dec 14, 2024, at 5:25 AM, Johan Helsingius <julf@Julf.com> wrote:
> 
> 
> Hi Juan,
> 
> Thanks for spotting that - my error in copying text from the console.
> Yes, the "-2" should be "-s".
> 
> 	Julf
> 
> 
> On 13/12/2024 20:59, Juan Manuel Palacios wrote:
>> Hi Julf,
>> Thank you for posting this resolution! Just the one question: when you say
>> gpart add -i 1 -a 4k -2 260M -t efi da0
>> did you mean -s for the 260M partition size? I’m reading a dash-two there, which seems odd.
>> Thank you,
>>> On Dec 13, 2024, at 10:31 AM, Johan Helsingius <julf@julf.com> wrote:
>>> 
>>> Replying to myself in case anyone else is in the same situation.
>>> 
>>> Managed to repair the EFI partition by booting into the live
>>> environment of the installer image, deleting the corrupted
>>> EFI partition with
>>> 
>>> 	gpart delete -i 1 da0
>>> 
>>> and then recreating it with
>>> 
>>> 	gpart add -i 1 -a 4k -2 260M -t efi da0
>>> 	newfs_msdos -F 32 -c 1 /dev/da0p1
>>> 	mount -t msdosfs -o longnames /dev/da0p1 /mnt
>>> 	mkdir -p /mnt/efi/freebsd
>>> 	cp /boot/loader.efi /mnt/efi/freebsd/loader.efi
>>> 	efibootmgr --create --activate --label "FreeBSD" --loader \
>>>             "/mnt/efi/freebsd/loader.efi"
>>> 	umount /mnt
>>> 	
>>> (I then did the same for the other disks in the array just for
>>> redundancy)
>>> 
>>> 	Julf
>>> 
>>> On 12/12/2024 15:13, Johan Helsingius wrote:
>>>> Hi,
>>>> I have a server with 4 disks with most of the disk as a 4-way ZFS
>>>> root partition, and small EFI, freebsd-boot (as an emergency
>>>> backup) and swap partition. For some reason the EFI partitions
>>>> seem to have gotten corrupted in one of the updates, so the server
>>>> simply refuses to boot using UEFI, and when trying to boot using
>>>> BIOS booting, it complains about the efi partition being corrupted
>>>> (and trying to mount it as a msdos partition results in failure
>>>> as the partition is not valid.
>>>> What would be the easiest way to recreate the boot partitions
>>>> without affecting the ZFS partitions)?
>>>> 	Julf
>>> 
>>> 
>