[Wylug-help] Grub boot menu screen unreadable

[roger]

On 17/05/13 23:03, roger wrote:
> Hi.
>
> I've just, successfully, installed F18 alongside Win 7 on a Thinkpad
> T400. Clearly Grub is trying to show a boot menu, since I get different
> boots if I just press [Enter] or down arrow first). The problem is that
> the screen is mangled: shaded coloured lines with some dots.
>
> It would be nice to be able to read this menu. Can the problem be fixed?
>
> NB Once Fedora itself starts to load, the display is perfect.
>
> /etc/default/grub is:
> ---------------------------------------------------------------------------------------
> GRUB_TIMEOUT=5
> GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
> GRUB_DEFAULT=saved
> GRUB_GFXMODE=640X480
> GRUB_CMDLINE_LINUX="rd.lvm.lv=fedora/swap rd.md=0 rd.dm=0 $([ -x
> /usr/sbin/rhcrashkernel-param ] && /usr/sbin/rhcrashkernel-param || :)
> rd.luks=0 vconsole.keymap=us rd.lvm.lv=fedora/root rhgb quiet"
> GRUB_DISABLE_RECOVERY="true"
> # GRUB_THEME="/boot/grub2/themes/system/theme.txt"
> ---------------------------------------------------------------------------------------
>
> On advice from someone on the Ask Fedora site, I commented out the
> GRUB_THEME line and added the GRUB_GFXMODE line - and ran,
> sudo grub2-mkconfig
>
> Thanks,
>
> Roger Beaumont
Sorted.

Replace the GUB_GFXMODE line with

GRUB_TERMINAL=console

and do

grub2-mkconfig -o /boot/grub2/grub.cfg

and hay presto: a readable menu!

Roger