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Re: booting from install usb

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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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Thread

booting from install usb Paul Scott <waterhorse@ultrasw.com> - 2022-05-09 23:00 +0200
  Re: booting from install usb Felix Miata <mrmazda@earthlink.net> - 2022-05-09 23:20 +0200
    Re: booting from install usb Paul Scott <waterhorse@ultrasw.com> - 2022-05-10 04:40 +0200

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