UBuntu 9.04 + Vista Dual Boot Problems

August 22, 2009 at 16:32:37
Specs: Ubuntu 9,04 i386, E4500 Core 2
Hi, just installed Ubuntu from the live cd to a secondary HD. Grub loader appears fine - Ubuntu loads ok, but Vista is failing to load whatever option I try. My Advent PC comes with a rescue partition, like many pcs, and I have tried doing the normal rescue methods and even booted from the rescue DVD, but to no avail even after it said it had fixed problems on c: vista - which took the best [part of a n hour. I obviously can't use any of the boot utilities I have heard about that are Windows based, are there any Linus based? or am I destined to uninstall Ubuntu and try n rescue windows - then forget Ubuntu? Although saying all this, I do like it and it did dual boot fine beside windows using Wubi to install it, just a full install, didn't =(

TIA, Billy <tired and emotional>


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#1
August 23, 2009 at 09:23:26
Is the Grub loader installed to the second hard drive ? My guess is that, unless you specified it that way when installing, that it's installed to the first hard drive. When you boot up, does the Vista boot loader appear as an option ?

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#2
August 23, 2009 at 10:00:53
Hi.

Grub is installed on the 2nd h/d from what I can see - I asked the Ubuntu to use the whole of this h/d when prompted during installation and not to install Ubuntu beside my present OS (Vista) in it's own partition.

When Grub boots it shows 4 Ubuntu boot options and below it does show 2 Other OS Loading options, I think it calls it? I.E. Vista loading options. But once I choose either of these, it passes from Grub ok, to the normal text based Vista loader, like when you press F8 during post in Vista. But, then I just get a blank black screen after I choose any of the options given there by either Windows loader.

My Vista OS is still there, i.e. IO.sys, MSdos.sys, config.sys and autoexec.bat, but boot.sys has gone walkies. Probably my MBR has changed I don't know what Ubuntu does to the file system? Something has stopped windows loading. I have entered the c: prompt when I could, after I popped in a rescue disk and booted from it, but Fixmbr is not a recognised command - that's if this was the right thing to do to rescue my Vista - I really need it back.

Thanks for your help, really.

Billy.


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#3
August 23, 2009 at 10:27:18
I would check the boot order of the HDD's in the bios first. If Grub is installed on the 2nd h/d, then to boot Ubuntu, the 2nd h/d should be set as the first boot device in the bios-I have that setup on one of the computers I am running Ubuntu on. To boot Vista, I switch the order in the bios to boot from the first HDD.

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Related Solutions

#4
August 23, 2009 at 11:32:27
Hi. I tried your idea, thanks. After re-boot my system wouldn't get past the POST this time. Once the h/d boot order was changed back Grub booted Ubuntu ok. But again if I allowed Grub to pass on to the windows loader and I was given the option by it to start windows, I was left with a dead machine and a blank screen again. No message, no nothing. Is windows falling over because it's MBR has been changed by the Ubuntu installation?

Any further ideas appreciated.

Thanks again for your help,

Billy.


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#5
August 23, 2009 at 13:52:43
"Once the h/d boot order was changed back Grub booted Ubuntu ok." By changed back, do you mean back to booting from the first HDD first in the bios ? By the way, are either or both HDD's sata ? What has probably happened is that the the Ubuntu installation has messed up the MBR, as you suggested. If you have a Vista DVD, you could try a startup repair-that would allow you to boot Vista. You would then have to repair or reinstall Ubuntu somehow. I would either create a separate partition on the first hdd so that Ubuntu would install Grub there-or install Grub to the second HDD.

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