From now on when you exit the chroot environment and wish to re-enter it, you should run the following modified chroot command.
Additionally, now that all software has been installed there is no need to use anything from the /tools directory anymore, so it may be deleted. However, since the Tcl, Expect, and DejaGnu packages only exist here, you may want to reinstall them after removing that directory.
chroot $LFS /usr/bin/env -i \
HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
PATH=/bin:/usr/bin:/sbin:/usr/sbin \
/bin/bash --login |