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Ubuntu 11.04 has a strange bug for me, and it has morphed with a recent update. In the past, when I'd reboot into Windows (7, for gaming), the system would come up to the point where it should switch into full graphical mode, and then spontaneously reboot. When it came up again, it would continue to the login screen, and everything would be fine. If I shut the machine down, instead of rebooting, and then powered it back on with the power button, it would NOT do a reboot to get into Windows the first time through.

Now, however, some package has been updated (I'm guessing the kernel), and things have changed. On reboot now -- whether by rebooting from within Ubuntu or by shutting down and powering on again -- it reboots as it starts the BIOS. When it does finally come up, the BIOS tells me that there was a failed boot, and asks me to either enter the BIOS setup or continue.

Rebooting from Windows does not cause this. Rebooting from 10.10 did not cause this. I upgraded to 11.04 when it came out, found this bug, reverted to 10.10, and it went away. I must conclude that my hardware is not at fault. I decided to try upgrading again -- figuring that this bug would have been fixed -- and find that the problem was not only NOT gone, but now is worse.

The problem here is that there seems to be NOTHING I can do to troubleshoot this problem, so I have NO idea where to file a bug report. Does anyone know of a way to capture what the BIOS thinks is wrong? Maybe that could lead me back to whatever is going on in the Linux kernel that's leaving the BIOS in a strange state. I suspect it's the fakeraid driver, as I have a stripe across which I have installed Windows and Ubuntu, and there have been a couple times where my /home partition has become corrupted and needed a fsck. That has never happened to me before.

Even if I just conclude it's a fakeraid driver problem, do I submit it to Ubuntu's bug tracker, or the actual kernel's tracker? How would I know if Ubuntu has been making patches against the mainline's fakeraid driver? I suppose I could try a vanilla kernel, but I've always sucked at getting raw kernels compiled with everything I need. Does someone run a PPA for generic kernels? (If so, I haven't been able to Google it.)

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Just so I'm clear: When you restart from 11.04 and try to boot into Windows, Windows needs to half-boot and restart before it will boot properly? Is Ubuntu mounting the Windows drive? –  Oli Aug 9 '11 at 13:08
No, that's the way the bug HAD manifested itself. (And, no, Ubuntu wasn't mounting the Windows drive, as I specifically stopped doing that to see if that was the problem.) NOW, the machine reboots without ever getting to Windows AT ALL. The BIOS itself resets on reboot. –  David Krider Aug 9 '11 at 15:58
This question appears to be abandoned, if you are experiencing a similar issue please ask a new question with details pertaining to your problem. If you feel this question is not abandoned, please flag the question explaining that. :) –  jrg Feb 3 '12 at 0:40
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closed as too localized by Marco Ceppi Feb 3 '12 at 0:52

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

If Windows needs to restart mid-boot, I'd look to Windows for the answer.

My suspicion is Windows thinks its drive hasn't been cleanly shut-down. If memory serves, Windows will do a chkdisk and restart if it thinks the disk might be compromised. That would make the Ubuntu bug somewhere in its ntfs/mounting stack. Try not mounting the drive (if you are) and testing Windows again.

But as I say, even if the above doesn't apply, rummage around in Windows. I've been away from the Microsoft fold for so long that I can't remember where Windows would store boot logs but if it's not obvious, You might have more luck on SuperUser.

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This can't be Windows related. It's rebooting as the BIOS tries to start now, but only when I reboot from Ubuntu, and not when I reboot from Windows. –  David Krider Aug 9 '11 at 16:00
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