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- Path: sparky!uunet!ogicse!psgrain!ee.und.ac.za!csir.co.za!olsa99!unisup1!aris
- From: aris@lasernet.co.za (Aris Stathakis)
- Newsgroups: comp.unix.xenix.sco
- Subject: Re: SCO Xenix compatability & Systems
- Keywords: Xenix compatability
- Message-ID: <1992Nov12.063047.23755@lasernet.co.za>
- Date: 12 Nov 92 06:30:47 GMT
- Article-I.D.: lasernet.1992Nov12.063047.23755
- References: <1228@consult.UUCP> <BxGn8t.AMq@acsu.buffalo.edu> <1229@consult.UUCP>
- Organization: Lasernet (Pty) Ltd.
- Lines: 83
-
- In <1229@consult.UUCP> bob@consult.UUCP (Bob Willey CDP) writes:
-
- >In article <BxGn8t.AMq@acsu.buffalo.edu> v505pda4@ubvmsb.cc.buffalo.edu (Jerome J Schentag) writes:
- >>In article <1228@consult.UUCP>, bob@consult.UUCP (Bob Willey CDP) writes...
- >#>We have recently been doing some testing for several clients
- >#>about running SCO Xenix 386 v2.3.4 on various machines.
- >#>
- >#>We have seen problems on several machines (486/33 & 486/50) where it
- >#>has problems booting the N1 diskette. Comes up with a string of "EEEE"'s.
- >#>The number of EEE's will vary. Sometimes it will come to the Boot:
- >#>prompt and many times it will not???
- >#>The machines have AMI BIOS, and various controllers.
- >#>>.. Bob Willey, CDP .. | .. uunet!consult!bob bob@ccs.com ..<
- >#
- >>We had the same problem when we decided to upgrade our Xenix system to a 486-33
- >>from a 384-40. I discovered that when I turned off the internal and external
- >>486 cache (which the AMI bios I had allowed) The system would boot normally
- >>but was slower than the 386 (bummer 8-( .) After a call to tech support
- >>for the hardware suggested turning on one wait state for the cache everything
- >>worked fine. It was amazing, first time I actually got a correct answer to a
- >>problem in less than 30 seconds. Seems that the machine works fine with
- >>0 wait state cache under dos, but needs 1 wait state in cache for Xenix.
-
- >This sounds interesting, but after checking into the advanced CMOS
- >setup options on the AMI BIOS we find that there are options for disabling
- >the internal cache and the external cache, but nothing about wait states
- >for the cache. There is an option for wait states on the memory, and
- >also an option for Bus/Clk (2/4, 2/5, etc.). We have tried disabling
- >the cache without any success, and also fooling around with the Bus/Clk
- >speed. Did not seem to improve the problem. Have not yet tried the
- >DRAM wait states. That will be next.
-
- Here is something from the SCO IT scripts:
-
-
- When I boot from the N1 floppy, EEEEEEEEEEs appear on the console.
-
- RELEASE: SCO XENIX System V Operating System Generic
- SCO UNIX System V Operating System Generic
-
- PROBLEM: When I boot from the N1 floppy, EEEEEEEEEEEEEEs appear on the
- console.
-
- CAUSE: The boot(HW) program performed a BIOS interrupt 13H to read a
- portion of the kernel from the diskette. BIOS returns with the
- carry bit set, indicating an error. The boot program then uses BIOS
- interrupt 10H to print an E to the screen.
-
- Note that this is the ONLY time when the UNIX or XENIX operating
- system makes a BIOS call -- once the kernel is loaded BIOS is not
- used.
-
- Some possible causes for this are:
-
- (1) The N1 floppy is not properly adjusted in the floppy drive.
-
- (2) Bad or temperamental floppy drive.
-
- (3) Corrupted N1 floppy.
-
- (4) Caching is enabled.
-
- SOLUTION: To resolve the problem, take the following steps:
-
- (a) Insert the N1 in the floppy drive slot and adjust
- the floppy.
-
- Power the machine off and on to reboot from the N1 again;
- check for reappearance of the problem.
-
- (b) If the problem still exists after repeating step (a),
- then try booting a DOS, or other bootable, diskette.
-
- If the machine successfully boots a diskette, it indicates
- that your N1 floppy is corrupted.
-
- You are entitled to a free replacement floppy.
-
- --
- Aris Stathakis Tel:+27 11 887 4220 |Gimme a beer and money sandwich -
- SCO Unix Support Fax:+27 11 887 1141 |Hold the bread. - Waldo D.R. Dobbs
- Lasernet (Pty) Ltd X25: 06550 11642692 |_________________________________
- P.O. Box 78446, Sandton, 2146, R.S.A Internet: aris@lasernet.co.za
-