> The file servers that maintain on-disk file systems > like kfs, fossil, kenfs, etc. all do use groups in > the expected way.
yes. but there are obscure exceptions. dossrv is fully updatable, but doesn't bother with groups. but of course that's cheating. fat doesn't even support users. and it doesn't really matter. nobody stores more than boot files in fat. there are also some non-updatable fses that don't support groups such as paqfs, 9660srv, the various tapefs programs that also don't support groups. of these, i can't see how it would be useful, except in the case of paqfs. - erik
