GRUB rebooting after loading stage1.5?

[Jess Little]

After a fresh install of Hoary, Windows seems to keep screwing with grub. If I
just boot into Linux, everything is fine, but after booting into Windows, my
next boor goes into an infinite reboot loop. After POST, the screen says "GRUB
loading stage1.5." and then the machine reboots. This is temporarily fixable
using grub from a Knoppix cd to redo the mbr, but booting into Windows again
fubars things. Didn't have this problem previously running
hoary-upgraded-from-Warty on this same machine. It only appeared after a clean
install of Hoary Final.

I'm not the only one having this problem: see
http://ubuntuforums.org/showthread.php?t=23519

[Matt Zimmerman (mdz)]

If it is fixed by reinstalling GRUB in the MBR, and booting into Windows breaks
it, then this would seem to imply that booting Windows is modifying the MBR.
This shouldn't happen, but if it is, that seems like a Windows problem, rather
than a GRUB problem.

Are you able to boot into Ubuntu several times in a row without trouble?

[Jess Little (jackymac)]

(In reply to comment #1)
> Are you able to boot into Ubuntu several times in a row without trouble?

Indeed I am. I don't get the reboot loop until I boot into Windows. I reported
it as a bug because I never had the problem until installing Hoary Final and
nothing changed about my Windows partition. Installed Hoary on the same
partitions that had Warty-to-Hoary on them (just let the installer format the
partitions).

[Matt Zimmerman (mdz)]

This might be a bit of a heavy-handed test, but if you install Warty on the
partition again, does it fix the problem?

[Jess Little (jackymac)]

Nope. Still getting the reboot problem. Worked fine with Warty before though.
 Not sure what changed. :-/

[Manuel López-Ibáñez (manuellopezibanez)]

Thanks for your bug report. Indeed more users have reported similar problems,
however, it is still not clear if the causes are common to all of them. Bug
26058 seems similar to your problem and it has been reported upstream. So, I
will mark this bug report as a duplicate of that so there is a single place to
discuss about this problem. If you can provide more information or want to add a
comment, please do it in bug 26058. You may be interested to add your address to
the upstream bug report at
http://savannah.gnu.org/bugs/?func=detailitem&item_id=15048.

This bug has been marked as a duplicate of bug 26058.

[Manuel López-Ibáñez (manuellopezibanez)]

If you are not using Novell stuff in your Windows, then this bug report is not a duplicate of bug 26058 (see [ http://savannah.gnu.org/bugs/?func=detailitem&item_id=15048#comment5 ]).

Jess Little, could you, please, confirm that you are using Novell ZenWorks (or something similar) in your Windows partition? Otherwise, this bug report should be reopened.

[Jess Little (jackymac)]

My setup has changed since then, but at the I was using ZenWorks on that machine. This bug can stay closed.