-if scope.lookupvar('site::nodeinfo').has_key?('porterbox')
- purp += "\n " + wrap("Disk space on porter boxes is often limited. Please respect your fellow porters by cleaning up after yourself and deleting schroots and source/build trees in your ~ as soon as feasible. DSA reserves the right to recover disk space as necessary. See <URL:http://dsa.debian.org/doc/schroot/> for a brief tutorial on using schroot.")
+if classes.include?("porterbox")
+ purp += "\n " + wrap("Disk space on porter boxes is often limited. Please respect your fellow porters by cleaning up after yourself and deleting schroots and source/build trees in your ~ as soon as feasible. DSA reserves the right to recover disk space as necessary. See <URL:http://dsa.debian.org/doc/schroot/> for a brief tutorial on using schroot. There may be chroots for architectures other than #{arch} available, please list available chroots to check.")