here is the code the live installer uses to copy its files into a new root
cd /
TARGET="put your mounted target here"
dirs=$(ls -1 / | egrep -v "^proc" | egrep -v "^mnt" | egrep -v "^boot" | egrep -v "^sys" | egrep -v "^tmp")
for i in $dir; do
cp --preserve=all -R /$i $TARGET/
done
mkdir -p $TARGET/{tmp,boot,mnt,sys,proc}
mkdir -p $TARGET/mnt/{cdrom,cdwriter,dvd,dvdwriter,floppy,hd,linux,loop,memory,pendrive,tmp,vl-hot,win,zip}
from there it resets the live start scripts to non-live versions
cd $TARGET/etc/rc.d/ && rm rc.S && ln -s rc.S.real rc.S
cd $TARGET/etc/rc.d/ && rm rc.M && ln -s rc.M.real rc.M
cd $TARGET/etc/rc.d/ && rm rc.local && ln -s rc.local.real rc.local
then you just need to change fstab and install a bootloader