Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!eagle.wesleyan.edu!hdtodd
From: hdtodd@eagle.wesleyan.edu
Newsgroups: comp.sys.apollo
Subject: uwm/xownsroot login hangs on diskless noes
Message-ID: <1991Jan23.221253.37967@eagle.wesleyan.edu>
Date: 24 Jan 91 03:12:53 GMT
Organization: Wesleyan University
Lines: 23


	This is a followup answer to a question I posted a couple of weeks ago. 
Running 10.2, BSD4.3 on a 2500 disked node supporting two diskless nodes, I set
up the systems to run with xownsroot and to start up uwm from startup_login.
The login process hung for non-root users but succeeded for root on the
diskless nodes but worked just fine for both on the disked nodes.  After 
spending a couple of days working on the problem, I asked for insights.  I
didn't get any responses, so this must be a rare environment.

	In case anyone else runs into the problem, here was the cause and 
solution for mine.  During bootup, the rc file clears /tmp.  Apparently, uwm
needs a file /tmp/X11-unix/X0  --- and it needs for that file to be writable by
the display user.  Unfortunately, it seems to create it srwxr-xr-x (at least on
the diskless nodes).  So, root works just fine, others hang on login (uwm
hangs).

	My fix, as a novice UNIX user, was to create the directory and file
at the end of the rc script and to set the protection to 4777.  There must be a
cleaner way than this, but it works ... and I'd spent more time on this than I
could afford as it was.  Suggestions for cleaner fixes (or obvious mistakes in
my setup of the system) would be welcome.

	I hope this helps someone else considering this environment.