Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

My start-up process:

Start computer

loads bios

loads grub- now i can essentially make two choices

load Ubuntu or load windows xp

I choose to load Ubuntu and everything is fine

I choose to load windows xp and i get a blinking underscore

This is a new thing since i have been dual booting for a month so far. And there was no update to either my linux or my windows. So far this problem is arbitrary. My grub configure file is still there and as far as i can tell correct i can post it here (this is only the windows part):

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 0E9FECDB5A92D74A
drivemap -s (hd0) ${root}
chainloader +1
### END /etc/grub.d/30_os-prober ###

Any pointers would be helpful. I don't want to run the grub autocorrect right now -- it deleted my Windows options in the past when I've used it.

I'm using Ubuntu 12.04 LTS.

Edit: i also found my boot.ini it seems fine but herer it is:

[boot loader]
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

Edit2: I manually attempted to boot to xp and recreated the problem. So the problem is mot likely not with grub but with xp not wanting to boot up.

share|improve this question
Try using SuperGrub Disk. It allows you to boot into existing OS using it. If it doesn't work, the problem probably is with xp. – Mahesh Nov 20 '12 at 15:37

You can try this:

Enter to Ubuntu Enter to terminal and write:

$ sudo update-grub2

This will make that ubuntu to detect the O.S. in your computer.

I hope that this could fix your problem.

share|improve this answer
grub detects the os it just doesnt boot it. I feel that there is a problem from xp's side. – Akshay Nov 20 '12 at 1:07

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.