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for English User:
You have 3 partition that you want install on it Ubuntu and BackTrack
Ubuntu -----> sda1
BackTrack -----> sda2
swap -----> sda3for have Ubuntu and BackTrack, you have 2 choice :
A . frist install BackTrack and then install Ubuntu, on this section Ubuntu Recover the grub and add BackTrack in Grub Menu automaticly
B . frist install Ubuntu (or you have this from past) and then install BackTrack, on this you must do this instruction:
1 . Install BackTrack
2 . Insert Ubuntu Live CD and Recover the Grub (see recovering grub on this : http://ubuntuforums.org/showthread.php?t=224351)
3 . Now Run your ubuntu on HDD, open the terminal and insert this commond on this :
sudo gedit /boot/grub/menu.lst4 . on page that now opend, on where that writed :
### END DEBIAN AUTOMAGIC KERNELS LISTinsert this line :
title BackTrack
root (hd0,1)
kernel /boot/vmlinuz vga=769 root=/dev/hda2 ro
bootBecuse you install BackTrack on sda2, on hdX,Y , Y become 1
now save menu.lst and reset the system
when the grub menu come on, select BackTrack
Ya Ali