Install Backtrack with Arch managing grub?

view full story

https://bbs.archlinux.org – Hi all, I just installed backtrack on my laptop (didnt install bootloader at the end), and I want to manage this distro boot from the boot partition (with Arch owns and grub2 is installed). I simply installed os-prober and then ran grub-mkconfig -o /boot/grub/grub.cfg and the backtrack installation was succesfully detected. However, I need to add some kernel parameters and rebuild the initramfs of the Backtrack installation, but have no idea how to do it.I tried going into the /boot directory of the backtrack install (from my Arch installation), add the parameters there, then boot into backtra (HowTos)