mount -o bind /proc $HOME/$1/BASE/proc
mount -o bind /sys $HOME/$1/BASE/sys
mount -o bind /dev $HOME/$1/BASE/dev
mount -o bind /dev/pts $HOME/$1/BASE/dev/pts

chroot $HOME/$1/BASE

urpmi --auto-update

umount $HOME/$1/BASE/dev/pts
umount $HOME/$1/BASE/dev
umount $HOME/$1/BASE/proc
umount $HOME/$1/BASE/sys
