Re: Updating EFI boot loader results in boot hangup

From: Larry Rosenman <ler_at_lerctr.org>
Date: Fri, 12 Aug 2022 20:26:08 UTC

boot off a memstick?

On 08/12/2022 3:25 pm, Nuno Teixeira wrote:

> The problem is if boot is failing, how to mount and rename it?
> 
> I'm looking for a way, if possible, to boot directly bkp boot64x in 
> case of failure.
> I was hoping to find it in loader(8) or uefi(8)...
> 
> Larry Rosenman <ler@lerctr.org> escreveu no dia sexta, 12/08/2022 à(s) 
> 21:09:
> 
> I would assume just rename the bootx64.old to bootx64.efi
> 
> and/or put it in a different directory that EFI can see
> 
> On 08/12/2022 3:03 pm, Nuno Teixeira wrote:
> 
> I'm searching without success to load a bkp loader in case of boot 
> failure.
> 
> Upgrade process willl be like:
> ---
> mount -t msdosfs /dev/nvd0p1 /mnt
> cp /mnt/efi/boot/bootx64.efi /mnt/efi/boot/bootx64.old
> cp /boot/loader.efi /mnt/efi/boot/bootx64.efi
> ---
> 
> I can't find the right docs to load bootx64.old.
> Could you tell me what you did to solve your boot?
> 
> Thanks
> 
> Yasuhiro Kimura <yasu@freebsd.org> escreveu no dia sexta, 12/08/2022 
> à(s) 18:45: From: Nuno Teixeira <eduardo@freebsd.org>
> Subject: Re: Updating EFI boot loader results in boot hangup
> Date: Fri, 12 Aug 2022 18:26:11 +0100
> 
>> Hello Yasu,
>> 
>> Does it needes to update boot loader everytime that we upgrade 
>> current?
> 
> No, you need not.
> 
>> The only time that I updated was a month ago because of zfs upgrade 
>> and I need to practice how to boot
>> loader bkp file :)
> 
> I update boot loader everytime because I'd like to do it :-).
> And sometimes problem hits upon me like this time and I contribute to
> debugging base system :-):-).
> 
> ---
> Yasuhiro Kimura
> 
> --
> 
> Nuno Teixeira
> FreeBSD Committer (ports)

-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

-- 

Nuno Teixeira
FreeBSD Committer (ports)

-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106