#!/usr/bin/bash

LFS=/media/lfs

ps -ef | grep "^root.*sudo chroot $LFS" > /dev/null 2>&1
if test $? == 1; then
    sudo mount --bind /dev $LFS/dev
    sudo mount -t devpts devpts -o gid=5,mode=0620 $LFS/dev/pts
    sudo mount -t proc proc $LFS/proc
    sudo mount -t sysfs sysfs $LFS/sys
    sudo mount -t tmpfs tmpfs $LFS/run
    sudo mount -t tmpfs -o nosuid,nodev tmpfs $LFS/dev/shm
fi

sudo chroot "$LFS" /usr/bin/env -i   \
     HOME=/root                  \
     TERM="$TERM"                \
     PS1='[\u@\h \W]\$ ' \
     PATH=/usr/bin:/usr/sbin     \
     MAKEFLAGS="-j$(nproc)"      \
     TESTSUITEFLAGS="-j$(nproc)" \
     /usr/bin/bash --login

ps -ef | grep "^root.*sudo chroot $LFS" > /dev/null 2>&1
if test $? == 1; then
    sudo umount $LFS/dev/pts
    sudo umount $LFS/proc
    sudo umount $LFS/sys
    sudo umount $LFS/run
    sudo umount $LFS/dev/shm
    sudo umount $LFS/dev
fi