title: should we delete the build directories created in LFS for installing binutils-2.20?
body: <p>I am in the part ( <a href="http://www.linuxfromscratch.org/lfs/view/6.6/chapter05/binutils-pass2.html" rel="nofollow">http://www.linuxfromscratch.org/lfs/view/6.6/chapter05/binutils-pass2.html</a>)
                   ( <a href="http://www.linuxfromscratch.org/lfs/view/6.6/chapter05/binutils-pass1.html" rel="nofollow">http://www.linuxfromscratch.org/lfs/view/6.6/chapter05/binutils-pass1.html</a>)</p>
  
  <p>they ask me to build binutils again? i dont understand should we delete the binutils-build directory we used in the begining and create a new one for this build??? and what is pass 1 and pass 2? i am confused :/</p>
  
  <p>please help :)</p>