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

Witold Baryluk baryluk at smp.if.uj.edu.pl
Mon Aug 31 11:01:25 UTC 2009

Dnia 2009-08-31, pon o godzinie 12:44 +0200, Felix Zielcke pisze:
> Am Sonntag, den 30.08.2009, 23:40 +0200 schrieb Witold Baryluk:
> > 
> > Then I downgraded manually to 1.92+20090808-1 from squeeze (by manual
> > dpkg -i with .deb packages grub-pc and grub-common, and then
> > additionally grub-install /dev/sda to be sure), to be sure there is no
> > problem with&without gfxterm enabled. And there is non.
> [...]
> > 
> > I need to say that in my configuration even 1.92+20090808-1 with
> > commented out GRUB_TERMINAL (so using gfxterm), grub is still using
> > text mode 
> Uhm this is actually confusing. First you said with and without gfxterm
> it works and then that it still uses text mode.


Sorry for confusion. I have commented GRUB_TERMINAL (as in default
configuration), but still 1.96+20090808-1 is using text mode anyway.
Hongzheng Wang also have this problem.

In 1.96+20090826-3 I have this unaligned pointer error with
GRUB_TERMINAL commented, but still grub is using text mode,
and unaligned pointer error happens after loading any kernel
(i think initrd isn't loaded), then i can press any key, and restart
boot process (it backs to bios quickly, it read MBR again, and load
again grub).

No gfxmode is used at any point (with or without error, in any version).

> Please make sure you get the gfxterm with 1.96+20090808-1
> Just run the commands in command line.
> 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.

> set gfxmode=640x480
> insmod gfxterm
> insmod vbe
> terminal_output gfxterm

Will try after work. I already compiled grub-pc from gnu-svn+debian-svn
with your 1bit_blitter.diff patch applied (which removes few function).

PS. 1.92 was a typo, everywhere i should write 1.96.

Witold Baryluk
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