Date : Wed, 01 Aug 1984 21:52:00 MDT (Wed)
From : Richard Conn <RCONN@Simtel20.ARPA>
Subject: [decvax!mcnc!decvax!mcnc!ecsvax!emigh: LDR Problem]
FYI -- This is Ted's problem which I responded to in the other
message.
Rick
Date: Wednesday, 1 August 1984 09:21-MDT
From: decvax!mcnc!decvax!mcnc!ecsvax!emigh at Berkeley
To: rconn at SIMTEL20.ARPA
cc: ecsvax!emigh at Berkeley
Re: LDR Problem
Original-From: Ted Emigh <emigh@ecsvax>
Location: Genetics and Statistics, N.C. State University
Address: {decvax akgua unc duke ihnp4}!mcnc!ecsvax!emigh
Arpanet: decvax!mcnc!ecsvax!emigh@BERKELEY.ARPA
Rick,
I have been getting ZCPR3 in pieces. Looks good, BUT...
I often have trouble loading SYS.ENV. (In fact, I almost always do).
I can boot ZCPR3. I look at the various areas, and they are all initialized
correctly. (Basically the same as the one given in the Installation guide,
but my NorthStar prom is at E800H, so the addresses are somewhat shifted).
My SYS.ENV is a Class 1 Environment. When I issue LDR SYS.ENV, one of
several things happen:
If LDR.COM is installed with SYS.ENV, then my system dies. Sometimes it
will reboot the system (Jump to around E800H). By some quirk, after it
reboots, LDR will load SYS.ENV correctly.
If LDR.COM is installed with a Class 2 SYS.ENV, I get the message
"DIRALPHA -- Pointer Error". However, SYS.ENV is loaded, and further
LDR commands will execute correctly.
Under any case, once SYS.ENV has been loaded correctly, it will reload without
any problem (and will then load SYS.*).
The cold boot loader is similar to my working copy for ZCPR2. I don't have
the source for LDR.COM yet, but am trying to get it, then I can trace it.
Until then, I wanted to know if anyone else has mentioned this problem to you.
I'll keep you posted to whether this is my problem or a problem with LDR.
--Ted--
--
Ted H. Emigh Genetics and Statistics, North Carolina State U, Raleigh NC
USENET: {akgua decvax duke ihnp4 unc}!mcnc!ecsvax!emigh
ARPA: decvax!mcnc!ecsvax!emigh@BERKELEY