Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!gatech!emory!km
From: km@mathcs.emory.edu (Ken Mandelberg)
Newsgroups: comp.unix.aux
Subject: RAM configuration tricks on A/UX?
Message-ID: <4105@emory.mathcs.emory.edu>
Date: 3 Jun 89 14:55:36 GMT
Organization: Math & Computer Science, Emory University, Atlanta, GA
Lines: 23

Does anyone know any trick for violating the MacOS RAM configuration
rules when running A/UX?

More specifically, we have a number of A/UX machines with 4 1 Meg
simms. A/UX (with networking and X) runs much better in 5 Megs than 4.
On MacOS the only memory expansion we can do is add 4 more simms,
either 256K simms or 1 megs simms.

Neither of these options are attractive. 4 extra 1 meg simms per
machine is more than we can afford. On the other hand investing a lot
in 256K simms is wasteful, since they cannot be used if more memory is
added later.

I wish there was a trick that let us just add a 1 meg simm to the 4
already there. Every Unix kernel I have seen (prior to A/UX) has been
very flexible on sizing memory.  I don't know what the real issues are
on the MacII, but at the very least MacOS will not boot with 5 1 meg
simms, which gives no way to boot A/UX.
-- 
Ken Mandelberg      | km@mathcs.emory.edu          PREFERRED
Emory University    | {decvax,gatech}!emory!km     UUCP 
Dept of Math and CS | km@emory.bitnet              NON-DOMAIN BITNET  
Atlanta, GA 30322   | Phone: (404) 727-7963