title: chroot into other arch's environment
body: <p>Following the <a href="http://www.linuxfromscratch.org/lfs/view/stable/" rel="nofollow">Linux from Scratch</a> book I have managed to build a toolchain for an ARM on 
  an ARM. This is till chapter 6 of the book, and on the ARM board itself I could go on further with no problems.
  My question is if I can use the prepared environment to continue building the soft from chapter 6 on my x86_64 Fedora 16 laptop?
  I thought that while I have all the binaries set up I could just copy them to laptop, chroot inside and feel myself as on the ARM board, but using the command from the book gives no result:</p>
  
  <pre><code> `# chroot "$LFS" /tools/bin/env -i  HOME=/root TERM="$TERM" PS1='\u:\w\$ 
    PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin /tools/bin/bash --login +h
        chroot: failed to run command `/tools/bin/env': No such file or directory`
  </code></pre>
  
  <p>The binary is there, but it doesn't belong to this system:</p>
  
  <pre><code> `# ldd /tools/bin/env 
        not a dynamic executable`
  </code></pre>
  
  <p>The binary is compiled as per the book:
       <code># readelf -l /tools/bin/env | grep interpreter
            [Requesting program interpreter: /tools/lib/ld-linux.so.3]</code></p>
  
  <p>So I wonder if there is a way, like using proper environment variables for CC LD READELF, to continue building for ARM using these tools on x86_64 host.</p>
  
  <p>Thank you.</p>