Bug#544155: [grub-pc] grub update renders system unbootable (unaligned pointer 0x700ba)

[Witold Baryluk]

Dnia 2009-08-31, pon o godzinie 13:14 +0200, Felix Zielcke pisze:
> Am Montag, den 31.08.2009, 13:01 +0200 schrieb Witold Baryluk:
> > Dnia 2009-08-31, pon o godzinie 12:44 +0200, Felix Zielcke pisze:

> > No gfxmode is used at any point (with or without error, in any version).
> 
> So it actually only depends if the gfxterm stuff in grub.cfg is there in
> or not and nothing that grub uses gfxterm?

Exactly.

>> > loadfont /usr/share/grub/unicode.pf2
>> why this is in /usr? i have /usr and all other filesystems fully
>> encrypted. Only /boot is available from grub.

> It was just copied from my grub.cfg.
> Actually we copy the fonts to /boot/grub but only use them in there
> if /usr isn't readable by grub.

Ok, you are right. I see /boot/grub/unicode.pf2 and this code in
grub.cfg:


if loadfont /grub/unicode.pf2 ; then
  set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi

# my /boot filesystem is on /dev/sda1 as ext3.


Will try to execute this code by hand, step by step.

-- 
Witold Baryluk
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