-# xxx the accessor factory should enforce the category and descriptions provided here.
-# and BTW the tag should be created right away as far as possible, or at least when a Get is issued
-# also note that the two 'arch' instances use here will end in the same unique TagType object,
-# so you should make sure to use the same category/description for both
+# xxx the accessor factory should enforce the category, descriptions and roles provided here.
+# BootManager might need to set any of these 3, so 'node' needs to be in set_roles