step by step -- prepartion

staging directory
1. sources

mkdir $LFS/sources
chmod a+wt $LFS/sources

2. tools

mkdir $LFS/tools
ln -sv $LFS/tools /

option copy source code to hard disk

cp -R /lfs-sources/ $LFS/sources/

lfs user
1. create user

groupadd lfs
useradd -s /bin/bash -g lfs -m -k /dev/null lfs
passwd lfs

2. grant access right

chown -v lfs $LFS/tools
chown -v lfs $LFS/sources

3. work as lfs

su - lfs

cat > ~/.bash_profile << "EOF"
exec env -i HOME=$HOME TERM=$TERM PS1='\u:\w\$ ' /bin/bash
EOF

cat > ~/.bashrc << "EOF"
set +h
umask 022
LFS=/mnt/lfs
LC_ALL=POSIX
PATH=/tools/bin:/bin:/usr/bin
export LFS LC_ALL PATH
EOF

source ~/.bash_profile