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From: km@emory.UUCP (Ken Mandelberg)
Newsgroups: net.unix-wizards,net.periphs
Subject: Digital Data Memory on Vax 750/Unix
Message-ID: <1692@emory.UUCP>
Date: Fri, 5-Sep-86 01:45:36 EDT
Article-I.D.: emory.1692
Posted: Fri Sep  5 01:45:36 1986
Date-Received: Sat, 6-Sep-86 02:12:24 EDT
Distribution: net
Organization: Math & Computer Science, Emory University, Atlanta
Lines: 23
Xref: mnetor net.unix-wizards:7784 net.periphs:525

We bought some Vax 750 1 Meg boards from Digital Data
Systems. For some reason when first powered up 4.2-3 BSD
doesn't see them. The company said it wasn't a problem on
VMS, and in fact if we run the DEC memory diagnostic before
booting, Unix sees them until the next power failure. 

The company said that it had something to do with the fact
they used 256K parts, and the initial pattern that comes
up on the board is different.

Does anyone have an easy solution to avoid the manual intervention
needed on a cold boot. I guess I could hack up the standard boot
program to use some other criteria for finding memory, but it
would be nice not to have to.
-- 
Ken Mandelberg
Emory University
Dept of Math and CS
Atlanta, Ga 30322

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