Re: booting from install usb
On 5/9/22 14:19, Felix Miata wrote:
Paul Scott composed on 2022-05-09 12:25 (UTC-0700):
I let my laptop update its UEFI BIOS which of course zapped GRUB.
Not in the way you think...
/dev.sda2 which is "ef EFI (FAT-12/16/32)"
This should be the key, suggesting strongly that your Linux installation is
installed in UEFI mode.
That is correct. I did install in UEFI mode.
If this is the case, you should be able to fix the problem
via BIOS setup, to select the (presumably Debian) entry that is probably there to
select as top priority.
After the BIOS update I mentioned the only boot choice was Windows which
is why I figured some part of the GRUB stuff had been broken or deleted.
Alternatively, having executed mount -a after chrooting,
running efibootmgr should allow reorganizing the priority list to put your choice
at the top, or to add a new one if the one you need to be first is missing.
man efibootmgr
That didn't seem to work but as I was trying to figure out why I
discovered I must have missed where rescue mode was telling me to mount
the partition that must have had the EFI stuff I needed. I can't give
precise information but I was able to reinstall GRUB from Rescue mode
and now all is well!
Thank you very much for your help,
Paul
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