On Sun, 2009-02-22 at 16:16 -0800, Roger Marquis wrote: > None of the wiki instances I maintain need to have a writable underlay > directory, yet the system data_underlay_dir complains if it is not > writable They are not writable for the wiki user (due to ACLs). But they need to be writable for moin as it will store some caches into the pagedirs.