boot problem

**vale** · 02-05-2005

I installed (nearli successfully) ubuntu in one of my laptop partition.
I also have windowsxp and I'm using Grub as bootloader.
But there is still a problem.
When I logout from Ubuntu and restart the computer to pass at windows, windows boots up but I can't login! And I can't neither turn off the machine. Then I swith off the power and start again windows. It obviously checks the disk and just then I can login.
This happens every time I pass from linux to windows.
What can I do?

Thanks!!!
vale

**dylunio** · 02-05-2005

So grub doesn't apear each time you booy up after the instalation?

**vale** · 02-05-2005

No Grub appears every time.
If I select Ubuntu no problem.
Instead if I select windows, the screen of windows appears and then the icons with login usernames appear. But If I click on the icon with my username all is freeze. If I click on "turn of" also it is also freeze.
So I turn off the power and after the reboot and windows selection in grub and the automatic "scan disk" I can click on my username and normally go in windows.
What appens?
cheers
vale

**Ethyriel** · 02-06-2005

Ok, so no matter what, if you turn off the power instead of rebooting, you can load Windows fine? Try passing acpi=off in your /boot/grub/menu.lst and see how your reboot to Windows goes.

Are you mounting your C: partition in Ubuntu?

**vale** · 02-06-2005

sorry
but in wich point of menu.lst must I write acp=off?

**vale** · 02-06-2005

About your 2 question:
Maybe Yes
I mounted Windows uder ubuntu too see my windows files from linux.

**vale** · 02-06-2005

I also noticed that if I select "shut down"
from ubuntu, the machine restarts! Not good.

thanks
vale

**Ethyriel** · 02-06-2005

First, it's acpi=off, and it's in the kernel line of the Ubuntu section. It looks something like this:

Code:

# &#40;1&#41; Ubuntu Linux
title  Ubuntu Linux
root   &#40;hd1,0&#41;
kernel /boot/vmlinuz-2.6.8.1-2-686 root=/dev/hdd1 acpi=off ro quiet splash
initrd /boot/initrd.img-2.6.8.1-2-686

**vale** · 02-06-2005

ok
I'll try and let you know.
thans
vale

**vale** · 02-06-2005

I added acpi=off where you told me. but nothing changes at windows boot and again if I select "shut down" from ubuntu it reboots.

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