On Wed, 2025-08-20 at 23:15 -0500, David Wright wrote:
But if the OP is intent upon converting the disk, a more manual
approach,
I'm the OP. Dell told me that there's a Windoze 10 product key burned
into the MB. They said to download a Win 10 installer and it would
register automagically. So I backed up /home, used gparted to change
the disk from MBR to GPT (which blew away the partition table),
installed Windoze (which took the whole disk without asking), shrank it
using gparted, installed Debian 13, restored /home — and it didn't
boot. So I reinstalled Debian 13 and the grub installer figured out how
to set up booting correctly. It only took me about twelve hours.