Re: Grub 2 EFI blind mode [Solved]

[Richard Collins]

Sorry, I suppose I didn't explain all the steps.

 

Ultimately, I booted into konppix (32bit) and changed the automatic entry in cypttab and fstab to noauto ( this normally asks for a password at startup so encrypted disks can be mounted ). That allowed the boot process to continue automatically. After crossing everything and waiting for all the fscks to finish I got a login screen.

 

Then I installed refind ( a EFI bootloader alternative to Grub2) which doesn't cause the boot process to be hidden.

 

The original problem I was trying to fix still isn't fixed - refind doesn't remove the warning I get in the log, but it's not the reason I posted.

 

On Sunday 06 Jan 2013 12:51:42 Andrey Borzenkov wrote:

> В Sat, 05 Jan 2013 20:54:06 +0000

>

> Richard Collins <address@hidden> пишет:

> > Thanks Tom but the problem wasn't the discs, I've had some success. It's

> > a

> > case of multi problems, I think my PC has a grudge.

>

> You say "SOLVED" but do not explain how. It would be helpful for others

> if you explained how you solved it.

>

> > Problem #1: no keyboard/mouse with 64 bit distros

> > Reason: IOMMU support was enabled in the BIOS, this was enabled to try and

> > fix #2

> >

> > Problem #2: NVidia driver is unstable on a Grub2+EFI+64bit system

> > The fix was supposed to be disable the graphics that grub uses. This

> > causes #3

> >

> > Problem 3#: Changing the grub settings I discribed means that you can't

> > see

> > the boot screen - not a feature I'm comfortable with and stops booting if

> > the boot process needs user input.

> > Solution: ?

>

> So that I understand what happens

>

> - you get GRUB2 screen. You see output and can use keyboard to navigate

> it. Right?

 

Yes - the keyboard, mouse, network (and probably others) stopped working when a 64bit kernel is running.

 

> - GRUB2 screen itself is in text mode or in graphic mode?

 

It's always been in text mode as far as I can remember

 

> - when you select GRUB2 menu entry to launch Linux you get messages

> about wrong mode and "booting blind". No output from Linux kernel

> after that. Correct?

 

Yes - some HDD light flashing but as it's on a SSD it never flashes for very long anyway. After disabling the automatic crypt disk mounting it started performing checks on the harddrives and eventually started X

 

>

> > On Saturday 05 Jan 2013 14:16:13 you wrote:

> >

> > 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