+<pre><code># cat /etc/grml/grml-live.local\r
+[...]\r
+APT_PROXY="http://localhost:3142/"\r
+[...]\r
+FAI_DEBOOTSTRAP="jessie http://localhost:3142/ftp.debian.org/debian jessie main contrib non-free"</code></pre>\r
+</div></div>\r
+<div class="paragraph"><p>Make sure apt-cacher-ng is running (<em>/etc/init.d/apt-cacher-ng restart</em>).\r
+That’s it. All downloaded files will be cached in /var/cache/apt-cacher-ng then.</p></div>\r
+</div>\r
+<div class="sect2">\r
+<h3 id="revert_manifold">13.9. How do I revert the manifold feature from an ISO?</h3>\r
+<div class="paragraph"><p>The so called manifold feature Grml ISOs use by default allows one to use the same\r
+ISO for CD boot and USB boot. If you notice any problems when booting just\r
+revert the manifold feature running:</p></div>\r
+<div class="literalblock">\r
+<div class="content">\r
+<pre><code>% dd if=/dev/zero of=grml.iso bs=512 count=1 conv=notrunc</code></pre>\r
+</div></div>\r
+<div class="paragraph"><p>To switch from manifold to isohybrid mode (an alternative approach provided by\r
+syslinux) then just execute:</p></div>\r
+<div class="literalblock">\r
+<div class="content">\r
+<pre><code>% isohybrid grml.iso</code></pre>\r
+</div></div>\r
+</div>\r
+<div class="sect2">\r
+<h3 id="create-a-base-tgz">13.10. How do I create a base tar.gz (I386.tar.gz or AMD64.tar.gz)</h3>\r
+<div class="paragraph" id="basetgz"><p>First of all create the chroot using debootstrap (requires root):</p></div>\r
+<div class="literalblock">\r
+<div class="content">\r
+<pre><code>BASECHROOT='/tmp/basefile' # path where the chroot gets generated\r
+SUITE='jessie' # using the current stable release should always work\r
+debootstrap --exclude=info,tasksel,tasksel-data "$SUITE" "$BASECHROOT" http://ftp.debian.org/debian\r
+tar -C "$BASECHROOT" --exclude='var/cache/apt/archives/*.deb' -zcf "${SUITE}".tar.gz ./</code></pre>\r