- extra += "See 'dchroot -l' or 'schroot -l' for a list of available chroots.\n"
- if scope.lookupvar('site::nodeinfo')['ldap'].has_key?('admin')
- extra += "Please contact #{ninfo['ldap']['admin'][0]} for install requests,\n"
- extra += "following the recommendations in <URL:http://dsa.debian.org/doc/install-req/>.\n"
+ if classes.include?("porterbox")
+ extra += "For an introduction to the porterbox 'schroot' tool, see:\n"
+ extra += " <URL:http://dsa.debian.org/doc/schroot/>.\n"
+ else
+ extra += "See 'dchroot -l' or 'schroot -l' for a list of available chroots.\n"
+ if scope.lookupvar('site::nodeinfo')['ldap'].has_key?('admin')
+ extra += "Please contact #{ninfo['ldap']['admin'][0]} for install requests,\n"
+ extra += "following the recommendations in <URL:http://dsa.debian.org/doc/install-req/>.\n"
+ end