How to boot into ubuntu after installing Windows?

[bizzare_blue]

I was using Windows XP SP2 and Ubuntu 6.06 earlier...then I had to format the windows partition due to some probs and I used Ubuntu for a few days...Now I have installed the Windows XP SP2 again...but I am not able to boot into Ubuntu. Earlier I was given a choice of either booting into Ubuntu or Windows XP...

I am a complete newbie to Linux....Plz help me...

[mehulved]

Please search for 'how to restore grub' in this section. There are so many threads on this same topic.

[~Phenom~]

yes buddy ur Linux boot loader GRUB is gone , restore it . check open source section.

[it_waaznt_me]

Wanna dual boot Linux on a windows machine without changing your MBR? dd is your friend.

dd if=/dev/(linux boot partition) of=/(path to removable media file) bs=512 count=1

copy this file to your windows partition and add a reference to it in your C:boot.ini. Now reboot and use the Windows boot loader to switch to Linux.

Source