-which is the smallest working Fedora installation. Use C<yum
-groupinfo Core> to list the packages currently in the C<Core> group.
+which is a small working Fedora installation (but by no means
+minimal). Use C<yum groupinfo Core> to list the packages currently in
+the C<Core> group.
+
+=item B<--no-clean>
+
+Normally febootstrap will clean up the yum repository
+(C</var/cache/yum> inside the image). This contains the downloaded
+RPMs and metadata. However if you give the C<--no-clean> option, then
+the yum repository is left. This is useful if you want to run further
+yum commands inside the filesystem by hand.
+
+=item B<-p "proxyurl">
+
+=item B<--proxy="proxyurl">
+
+URL to the proxy server that yum should use.
+
+=item B<-u source>
+
+=item B<--updates=source>
+
+Pull in updates from an additional updates repository. The possible
+sources are:
+
+=over 4
+
+=item -u C<http://...> (a URL)
+
+Get updates from the specific URL.
+
+=item -u C<updates-released-fN> (an updates repository name)
+
+Get updates from the public mirrors of the named repository
+(eg. C<updates-released-f10>). See REPOSITORIES below.
+
+=item -u C<none> (default)
+
+Don't add an updates repository. This is the default.