On Sun, Oct 4, 2020 at 3:01 PM Samuel Sieb <samuel(a)sieb.net> wrote:
On 10/4/20 9:36 AM, Marius Schwarz wrote:
> And still,we do not know why the f33 livedisc does not boot at all when
> inserted early
> AND
> why grub-install /dev/USBDRIVE (correct devicename ofcourse ) is
> overwriting the ssd boot setup, instead of the usbdrive bootconfig.
You can't use "grub2-install /dev/USBDRIVE", that's for non-EFI
systems.
And as Chris explained, you can't use "grub2-install" either or it
will mess things up badly. If you have the usb drive EFI partition
mounted at /boot/efi, then re-installing "grub2-efi" should fix the grub
install on your usb drive.
This is why, for elementary OS image testing or live image testing,
it's often safer and faster to do it inside of a virtual system,
whether you use KVM, Virtualbox, VMWare, Xen, or whatever.
Manipulating your test system's grub settings is somewhat risky.