error details
lfs:/sources$tar -xvf binutils-2.23.2.tar.bz2 tar (child): cannot run bzip2: Too many levels of symbolic links tar (child): trying lbzip2 tar (child): lbzip2: Cannot exec: Too many levels of symbolic links tar (child): Error is not recoverable: exiting now tar: Child returned status 2 tar: Error is not recoverable: exiting now
solutions
Firstly,
rm -rf $LFS/tools rm -rf /tools mdkir -pv $LFS/tools ln -sv $LFS/tools /
Secondly,
chown -v lfs $LFS/tools
Finally,
su - lfs cd $LFS/source tar xxx
it works!!!