sciguy composed on 2022-01-08 12:13 (UTC-0500):
> It seems the root of my problem is in Microsoft's choice to take over
> the EFI in a recent update, thereby supplanting GRUB, which was there
> before. GRUB was a technology I understood fairly well; EFI is not. Can
> anyone suggest, or point to some resources, for how to install Linux
> alongside W10, in a way that the EFI appears to recognize (since it
> seemed to almost accidentally with Debian).
A UEFI BIOS is _much_ more competent than a legacy BIOS, and plays a larger part
of the boot process.
With UEFI-only mode selected in the BIOS (CSM disabled), all Windows would have
done is change which entry on the ESP filesystem is read when the PC is booted,
by
changing the BIOS boot priority order. Go into BIOS and you /should/ see a place
in the boot category to move a Linux installation to the top of the order, if
any
Linux installation was sufficiently completed.
Alternatively, booted in UEFI mode to Linux, the efibootmgr command can reorder
the boot priorities in the BIOS.
Grub doesn't participate in the UEFI boot process until after the BIOS loads
from
an ESP partition a file that an OS has installed there. Windows won't touch a
file
created by Linux, and Linux won't touch a file created by Windows.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
