Grub 2 EFI blind mode

[Richard Collins]

Hello all, I need some help. My system has become unbootable.

 

It was working fine with EFI booting until I set the following in /etc/default/grub.conf

GRUB_GFXPAYLOAD_LINUX=text

GRUB_GFXMODE=auto

 

I then ran update-grub2

 

When I reboot grub says:

"error: invalid video mode specification 'text'

"booting in blind mode"

 

the system then hangs indefinatly after a brief flash from the harddrive. It may be waiting for a password for an encrypted volume I have but i wont repond to "S" or "Esc" keypresses

 

I've tried adding set gfxpayload=true|keep|false - none of which work

Ive tried adding set gfxmode=640x480

 

The kubuntu boot cd wont load properly and 12.04 has broken keyboard / mouse support. this is driving me mad!

 

How can I undo the changes I made at the commandline?

Does anyone know a good efi rescue system?

 

I have a MSI 990FXA-GD65 (version E7640AMS V19.9)

The system only has Kubuntu 12.10 installed on ssd with gpt