Ubuntu

Unable to boot windows after installing 10.04 for dual boot

Asked by Mark Fry

After installing 10.04 on my laptop for dual boot with windows, the Windows fails to load. The option to select the boot loader is available in grub, but when I select it, windows tries to start, then fails.

I have tried this installation on both my desktop and laptop and the same problem occurs.

I did not have any dual boot issues when I was using Ubuntu 9+. Is this a new error for the 10.04 installation? If not, is there a way I can fix is so I can start windows?

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sebikul
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Randy Schilling (rchilling) said : 		#1

I reported problems (see question 111958) similar to your problems. They remain unresolved.
I upgraded 8.04 to 10.04 the other day on my desktop pc.
My pc has 2 drives, Windows is the os on my master drive, Ubuntu on the other one.
Under 8.04 Windows was among the boot loader options.
It's not a boot loader option under 10.04, as if my master drive disappeared.

There's seems to be more to it though.
10.04 fails to recognize my cd/dvd drives (again, 2 of them) as well as my master hard drive.
I had no problems with my cd/dvd drives under 8.04.
I've not been able to mount data cds
(especially annoying for me because I have important data on backup cds that I'm anxious to restore).
One time, out of many tries, 10.04 responded to and played a music cd.

Boot behavior has been inconsistent as well since the upgrade to 10.04.
Last time my system locked up three or four times during boot up before it booted up into the gui;
each time I had to manually turn the system off then on.

Well good luck and please forward any fixes. - Randy (<email address hidden>)

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Mark Fry (mfry1970) said : 		#2

I can see all of my connected drives and access the windows partition from nautilus. I have the loader option for my Vista installation in grub. The only real problem is the booting up of Windows.

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delance (olivier-delance) said : 		#3

Do you have a single disk or two disks like Randy Schilling (in this case it is more simple) ?
Can you try (if you have a single disk):
     sudo grub-install /dev/sda

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Mark Fry (mfry1970) said : 		#4

I do have a single disk, delance. I tried running the command you gave me. The command ran and reported no errors. But I still have the same symptoms...Windows will not start up.

I have the impression that there is a problem with the installer for 10.04. I got this problem on three machines now so far. One desktop running WinXP, one laptop running Win7 and one laptop running Win Vista. Same problem on all machines. I reinstalled 10.04 on the desktop and used the entire disk (don't need windows on that one). My laptop, I really want to get windows back running with Ubuntu. I work mostly in Lucid, but I need the windows to run online labs for college.

Any other suggestions?

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Best sebikul (sebikul) said : 		#5

try the following command, it will rebuild the grub boot list

# sudo update-grub

good luck!!

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Mark Fry (mfry1970) said : 		#6

That did the trick sebikul. Ha-ha windows is back.

A big thanks to everybody who contributed.

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Mark Fry (mfry1970) said : 		#7

Thanks sebikul, that solved my question.