On Sun, Jun 10, 2018 at 04:44:16PM -0400, Gene Heskett wrote: > and 3: to treat the grub install as if there are no other drives hooked > up. I don't need grub to fill half the boot screen with data from the > other drives.
Once your Debian installation is finished, put this in /etc/default/grub: GRUB_DISABLE_OS_PROBER=true Then run update-grub to remove the unwanted entries from your grub menu. The Grub info documentation describes it as follows: 'GRUB_DISABLE_OS_PROBER' Normally, 'grub-mkconfig' will try to use the external 'os-prober' program, if installed, to discover other operating systems installed on the same system and generate appropriate menu entries for them. Set this option to 'true' to disable this. Disconnecting disks while installing Debian can help avoid mistakes. However, it does not permanently suppress the boot menu entries referring to other OS installations. Regards, Mirko