GrubTransition - Debian Wiki

This page is about migrating GRUB Legacy to GRUB 2.

Grub2 in Debian-Installer

Initial proposal sent by Otavio: http://lists.debian.org/debian-release/2007/04/msg00328.html
The issues to be resolved before switching to grub2 as default are tracked in the meta Bug: 477094

Regressions

lock / password mechanism (done, see here how to use it)
Menu's default=saved / grub-reboot isn't implemented.
xen detection / setup in update-grub

Non-regression issues that may become essential (or at least, desirable) during lenny life period

Filesystems haven't been proof-tested with 64-bit offsets (2 TiB disks). Not really a regression (Legacy GRUB has the same problem), but it'll become critical in the future. There's a task for this in upstream: http://savannah.gnu.org/task/?7667

Grub 2 and the VGA parameter

In Grub2 the vga= parameter is depreciated.

To set a screen resolution for your console you can do the following log in as root

edit /etc/default/grub uncomment the GRUB_GFXMODE=640x480 and change the resolution to something you can use e.g. 1024x768

edit /etc/grub.d/00_header search for: set gfxmode=${GRUB_GFXMODE} on the next line insert: set gfxpayload=keep verify that the new line is before insmod gfxterm

run update-grub

run reboot to confirm that your changes worked!