[Discuss] grub

[Bill Ricker]

On Fri, Apr 14, 2023 at 12:10 PM dan moylan <jdm at moylan.us> wrote:

>
> working on a lenevo thinkpad T470
> plugged in a memory stick with fc37 loaded onto it
> pressed F12 and got the USB to the top of the list
> instead of booting from the memory stick, i get a grub prompt.
> what do i do (or have i done wrong)?
>

Probably nothing wrong, that might just be the default Grub configuration
that you copied with the ISO ?
It may have inadequate/wrong config. Or a bad copy of some of the necessary
files.
In the Grub boot shell, you can explore the stick partitions with 'ls',
then (a) pick one as root, (b) pick a boot image, (c) set up an init
filesystem, and (d) boot manually.
https://develmonk.com/2021/04/05/the-grub-prompt-demystified/
etc
Which if it's the only way to rescue a system is worth doing, but usually
isn't.

If you were to reformat the stick as a Ventoy stick, you could just copy
ISOs into the folder and the Ventoy bootloader gives you a friendly menu.
https://www.ventoy.net/en/index.html
https://github.com/ventoy/Ventoy#readme
https://www.youtube.com/watch?v=CuonyS3xdwg

Certain (gray-hat pentest) distros recommend against using Ventoy or
UnetBootin because they object to their bootloader being replaced with e.g.
Ventoy's, but for the rest of us, a friendlier boot loader is better for
thumbdrives!

-- 
Bill Ricker
bill.n1vux at gmail.com
https://www.linkedin.com/in/n1vux