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Article View: comp.sys.ibm.pc.rt
Article #1269

COMP.SYS.IBM.PC.RT: IBM RT - AOS - Frequently Asked Questions

#1269
From: Mark Whetzel
Date: Sun, 12 Dec 1993 02:01
682 lines
30903 bytes
Archive-name: ibm-rt-faq/aos
Last-modified: Thu Dec 12 20:28:56 CST 1993
Version: 1.0

Frequently Asked Questions for:  AOS on IBM RT systems

Posted monthy to comp.sys.ibm.pc.rt. 

This is the third of three FAQ's dedicated to the IBM RT processor.
The other FAQs cover different aspects of the RT processor, either hardware
issues common to all operating systems, or when used with different operating
systems.  (AIX FAQ to follow in a few days now!)

This FAQ is dedicated to use of AOS (Academic Operating System),
running on the IBM RISC processor known as the RT.  The RT is known
also as an IBM model 6150, 6151 machine.

The following informational items are correct to the best of my knowldge.
Additions, corrections or suggestions are gladly accepted.  I want this
list to be a dynamic article, with input by our readership.

All of the information in this list is specific for the IBM AOS.
Unfortunately, I do not have access to any RT's that run AOS.  For problems
with the information presented here, please contact me and I will try
to contact the submitter of the information.

Discussions on AOS usage are generally handled in comp.sys.ibm.pc.rt.
However, as AOS is a BSD derived port, so some discussions on its usage
have also appeared in "comp.bugs.4bsd.ucb-fixes".
Over time, RT speific questions have migrated to being discussed in the
newsgroup comp.sys.ibm.pc.rt.

There are other companion lists I will also be posting covering different
aspects of RT usage.  One of the lists concerns questions dealing with
the hardware aspects of the box, common to all supported operating systems.
Also included in the hardware FAQ is a little history and backround on
the IBM RT, its orgins, and some notes on its folklore.
Those FAQ's are also posted to this group with the same frequency.

This list is organized as a digest for newsreaders that can handle it. 
Each "digest page" generally covers one topic or Question/Answer.
You can jump to a particular topic by searching for that index key
(such as S.1) in position 1 of this list.

Direct inclusions of information by some submitters is framed with a 
line of "==**==**" repeating across the page.

In order to build up a better FAQ base, E-mail your contributions.
I will respond back to you via mail on your submission.
This FAQ is a work in progress.  Some entries are incomplete, and other
information may be missing.  Places with ????? denote areas needing 
more work or information.  Areas that I have made personal comments
on are enclosed in square brackets []. 

Input is always welcomed for making this a better list.
Style, grammar and spelling notes are also welcome.  Sometimes
it seems that my brain operates faster than my fingers can type. :-)

This FAQ is archived by the news.answers automatic archivers. 

AOS issues will be filed in the archive name:       ibm-rt-faq/aos
AIX issues will be filed in the archive name:       ibm-rt-faq/aix-v2/part#
Hardware issues will be filed in the archive name:  ibm-rt-faq/hardware

One of the many archive sites is uunet.uun.net, filed as:
    ~/usenet/news.answers/ibm-rt-faq/aos

For AIX RT  submissions E-mail to:   aix-rt@antimatr.hou.tx.us
For AOS RT  submissions E-mail to:   aos-rt@antimatr.hou.tx.us
For MACH RT submissions E-mail to:   mach-rt@antimatr.hou.tx.us
For general Q&A submissions (hardware and other stuff) E-mail to:
   faq-rt@antimatr.hou.tx.us

Other comments and correctons should be sent to the author:
    Mark Whetzel
    DOMAIN addr: markw@antimatr.hou.tx.us
    BANG address:  ..!uhnix1!lobster!antimatr!markw
    Daytime work number  8AM-5PM M-F CST  VOICE: (713) 963-2544

 ___--___---___--___---___--___---___--___---___--___---___--___---___--___

Changes for this December posting:
   1) Initial posting. LOTS of incomplete entries.
      Need more entries covering aspects as disk managment, serial port
      managment, printers, installation, ect..

 ___--___---___--___---___--___---___--___---___--___---___--___---___--___

------------------------------
Index to the RT FAQ family of postings.

  Note: The entire hardware index is entered here. 
        The answers in the hardware FAQ for these topics give the common
        non-OS specifc answers.  Topics with an astrisk have been given more
        specific information in this FAQ on that area as related to the
        AOS operating system usage. AIX Subtopic listings are in the AIX
        FAQ.  Section 5 is unique to this FAQ and covers only AOS topics.
 
  1.0   General Hardware questions with AOS specific extensions.

      * H.1   What is an IBM RT and some of its history?
        H.2   What types of processors were made?
        H.3   How fast are the different models of RT?
        H.4   Can you upgrade from one processor type to another?
        H.5   How can I tell what kind of processor type is installed?
        H.6   Where can I get parts for RT systems?
      * H.7   What adapter cards are supported in an RT running AIX V2.
        H.8   What IBM perhiperials were available?
        H.9   What cables are available?
        H.10  What is the pinout of the 6150 serial ports?
	      How do I make my own RS232 cables compatible for use with AIX.
        H.11  What is the pinout of the 6150/6151 Mouse/Tablet port?
        H.12  What is the pinout of the 6150/6151 keyboard port?
        H.13  Can I use a Non-RT keyboard on an RT?
      * H.14  How do I get a parallel printer attached to an RT?
        H.15  What are the switches on the Megapel adpater for?
		Technicial information on Megapel adapter and display.
        H.16  AT Co-Processor information.
        H.17  How can I get the maximum data on a 6157 tape drive?
              (Also covers different types of tapes to use.
               flags for 'backup' and 'tar'.)
      *	H.18  What hard disks can be used in an RT running AIX V2?
              What value is the ESDI terminator resistor for an E70 drive?
	      Switch settings and meanings for E70, E114 and E310 drives.
        H.19  What is the difference between an R70 and an E70 disk drive?
        H.20  What are the characteristics of the various IBM RT disk drives?
      * H.21  What SCSI devices can be attached?
      * H.22  What do the LED codes mean during power on.
      *	H.23  What does LED code xx mean (during AOS runtime)?
        H.24  What is different about the RT I/O slots.
              What cards will run in slot 8.
        H.25  How do I run diagnostics.
      * H.26  Serial port cards maximums and limitations.
        H.27  What are the switches on the 3278/79 adpater?
        H.28  Jumper location and information on AT Fixed disk adapter.
        H.29  Jumper locations and information on ESDI adapter.
        H.30  Jumper locations and information on EESDI adapter.
        H.31  Jumper locations and information on the 'PORTED' EESDI adapter.
        H.32  IBM 9332 Disk drive information.
        H.33  Pin connections and technical information on 6153, 6154 and
              6155 monitors. 
	H.34  IBM 5081 Display technical information.
        H.35  Jumpers and documentation on the Ungermann-Bass/IBM
              ethernet board.
        H.36  RT Token Ring card jumpers and addressing.
        H.37  What are the differences between the 032, APC and EAPC
              processor types.
        H.38  Speed and capability of the Floating Point options for
              the RT computers.  FPA, MC68881, AFPA.
        H.39  Where can I obtain a replacement battery?

  2.0   AIX Specific Software issues.

  3.0   AIX Specific question and answers.

  4.0   AIX Specific Porting questions.

  5.0   AOS Specific Software questions

	A.1   What is AOS?
        A.2   What is the difference between AOS and AIX?
        A.3   How do I get AOS?
        A.4   What is the current version of AOS?
        A.5   What patches are available for AOS?  How do I get them?
        A.6   What are the different C compilers for AOS?
        A.7   How do I make new SAUTIL and Installation Miniroot diskettes?
        A.8   Where can I find an AOS device driver for:
        A.9   Where can I get X11R5 for AOS and how do I get it running?
	A.10  What other operating systems are available for the RT?
        A.11  Using non-IBM ESDI drives with AOS.
        A.12  Using a Non-IBM SCSI adapter with AOS.
        A.13  Modifying AOS to support higher serial port speeds.

  9.0   Credits, Acknolowgements, and other information.

        X.1  Acknolowegements and copyright information.
        X.3  Credits for AOS.

------------------------------
H.1 - What is an IBM RT?

   More about this RT's history and information may be found in the
   RT hardware FAQ. under this section heading.  A partial summary of
   that entry is included here.

   The IBM RT is a RISC based processor designed by IBM, and unique to
   that platform.  The RT was first announced by IBM in January 1986.
   The processor is generally refered to as 032 processor.  In some
   documentation it is also refered to as the 'ROMP' processor.

   The RT PC Advanced System Processor has a 32-bit Reduced Instruction 
   Set Computer (RISC) architecture developed by IBM and implemented in 
   a 1-micron CMOS technology.  It has sixteen 32-bit general purpose   
   registers and uses 32-bit addresses and data paths. The              
   microprocessor is controlled by 118 simple 2- and 4-byte             
   instructions.  An IBM-developed advanced memory management chip      
   provides virtual memory address translation functions and memory     
   control.  It provides a 40-bit virtual address structure capable of  
   addressing one terabyte of virtual memory. Internal processor
   organization enables the CPU to execute most register-to-register 
   instructions in a single cycle.                 
	  The model 115/125 RT PC with their FAST ECC memory, is capable
   of providing the processor with a 32-bit word of data plus ECC each
   100 nsec cycle.  This memory consists of 40 1-megabit IBM RAM chips.     
   These chips are the same megabit technology used in the IBM 3090.    

------------------------------
H.7 - What adapter cards are supported in an RT running AOS.
	
      The IBM RT has what is called in the industry a ISA bus.  Based on
      the original IBM PC AT bus in design, the RT has 8 I/O slots in the
      tower (6150 model), and 6 slots in the desktop (6151 model).
      Slot 3 and 6 on the tower model and slot 1 on the desktop models are
      eight bit style slots.  Slot 8 on the tower and slot 5 on the desktop
      model are wired slightly different than standard.  See the hardware
      FAQ for more information.
     
      All adapters listed in this section on the hardware FAQ are
      supported by AOS.  Other adapter cards can be used with the proper
      device drivers configured into the system.

      Technically, any adapter that conforms to ISA standards would work
      provided there are appropiate device drivers AND no conflicts with
      existing adapters registers and bus addresses.

      The RT diagnostics program disks IBM supplied are unfortunately
      rather particular about OEM cards that attempt to emulate IBM adapters.
      This can sometimes lead to problems running diagnostics, where the AOS
      system will otherwise run fine under regular operation.
      Unknown adapter cards will be ignored.
 
      [ More needed on AOS support of OEM interface boards. - MW ]

------------------------------
H.18 - What hard disks can be used in an RT with AOS?

     At this time the hardware FAQ lists all known drives supported
     by IBM with an RT running AOS.

     To use a NON-IBM ESDI drive on an RT with the IBM Extended ESDI
     controller, it will need a feature called a 'short index pulse'.
       
     More notes on AOS drive useage can be found in section A.11.
 
   [ Are there any other disk drive hardware problems unique to AOS? -MW ]

------------------------------
H.21 - What SCSI devices can be attached?

     The regular IBM suported SCSI adapter is slightly different from most
     workstation adapters.  IBM chose to implement their adapter with the
     'Differential Driver/Receiver option' and with the 'Alternative 2
     connector' as per the proposed ANSI standard SCSI-1.  The SCSI
     interface conforms to (then) proposed ANSI standard X3T9.2/82-2
     Revsion 17B.  

     Two wires are used for each signal lead in a push-pull signaling
     method also called 'differential-ended'.  What this boils down to
     is that the IBM SCSI card is electriclly incompatible with a lot
     of the off-the-shelf SCSI drives.  Most drives for other workstations
     and PC's use a 'single-ended' SCSI implementation.
     
     IBM officially supported only one device attached to the SCSI
     interface card, the IBM 9332 'Athens' disk drive.

     Using a Non-IBM SCSI adapter and single ended disks is possible with
     AOS using a different SCSI card, and additional device driver support. 
     See question A.12 on how to add this support.

     [ More information is needed on AOS support of SCSI disks. - mw ]

------------------------------
H.22 - What do the LED codes mean during power on.

       The initial IPL sequence of LED codes are listed in the hardware FAQ.
       After LED code 22 and 26 is displayed control is passed to the
       loadable boot code. 

       [ Are any additonal LED codes displayed by AOS during power on? - MW ]

------------------------------
H.23 - What does LED code xx mean (during AOS runtime)?

       [ *ARE* any other LED codes displayed by AOS while running? 
         Any additional boot or failure codes? - MW ]
	
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     Submitter: Mark Dapoz     Bergen Scientific Centre, Bergen, NORWAY

     >I'm wondering if anyone using BSD knows what a blinking 89 on the
     >LED means on bootup.....???

     Sure, from led.h:

      /* kernel warning LED value */
      #define LED_NO_SCREEN   0x99    /* no output screen found */
      
      /* non-recoverable kernel errors */
      #define LED_BAD_SP      0x94    /* bad kernel stack */
      #define LED_INT_SP      0x96    /* bad kernel stack (interrupt) */
      #define LED_MEM_CONFIG  0x97    /* invalid memory configuration */
      /* standalone errors */
      #define LED_NOBOOT      0x98    /* bootxx could not find /boot */
      
      /* other known values for the led's (from ROS) */
      #define LED_KEY_LOCK    0x99   /* key is in lock position */
      #define LED_MC_CHECK    0x88   /* machine check during machine check ?? */
      #define LED_PC_CHECK    0x89   /* program check during program check ?? */
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
H.26 - Serial port cards maximums and limitations.

      With special kernel modifications, AOS can exceed the rated
      speeds published by IBM.

      More details on this can be found in section A.13.


------------------------------
5.0  AOS Specific Software questions

A.1  - What is AOS?

     Submitter: Keith Moore     date: Mon Apr 12 17:14:45 1993

     The IBM Academic Operating System is a port of 4.3 BSD to the RT,
     with a few extra features (like NFS) that weren't included in 4.3
     BSD.  It was only distributed to universities as an alternative 
     to AIX.


------------------------------
A.2  - What is the difference between AOS and AIX?

     AOS is a port of BSD 4.3 directly to the RT hardware, whereas AIX V2
     is a SYSV base system with BSD 4.2 merged and additional BSD 4.3
     supported added later.  AOS does not require VRM, as it is in
     direct control of the hardware.  

     [ More needed on the differences. - MW ]

------------------------------
A.3  - How do I get AOS?

     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     Submitter: Keith Moore     date: Mon Apr 12 17:14:45 1993

     You can't.  At least, not unless the organization you work for
     is already one of the licensees...perhaps in another department.
     Then you just have to find them and convince them to give you the
     tapes and the manuals.
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
A.4  - What is the current version of AOS?

     The last release was dated December 22, 1988.

     NOTE: More is needed on information related to AOS releases and
           patches.  

     [ I'm leaving this following query intact in this section in hopes of
     discovering more about other releases of AOS and information. - MW ]

     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     From: davids@engin.umich.edu (David Snearline)
     Subject: Dec. 1990 AOS release for 6152
     Date: 7 Sep 93 02:25:39 GMT

     Does anyone have the Dec. 1990 release tape of AOS for the 6152 RT
     (crossbow in PS/2 Academic System)?

     I currently have the Sep. 1988 release, and am looking for the later
     release so as to put multiple crossbow cards in a single [ 6152 ] RT. 
     I've checked around here, but the Dec. 1990 AOS we have left is for
     the 6150 style RTs -- no PC code.  No idea where the 6152 tape went...
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
A.5  - What patches are available for AOS?  How do I get them?

     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     Submitter: Keith Moore     date: Mon Apr 12 17:14:45 1993

     Several patches were made available by IBM through their uucp
     machine 'ibmsupt', and later on, to the Usenet newsgroup
     comp.sys.ibm.pc.rt.  (Sorry, 'ibmsupt' was shut down a long 
     time ago.)

     ftp.cis.ufl.edu (128.227.100.252) replaces bikini.cis.ufl.edu (now
     out of service) and has most of the "official" patches, along with a
     few other files, available for anonymous ftp in the directory
     "ibm-rt-fixes".  See the file "Index" in that directory for descriptions.

     Also check out jim.ultra.nyu.edu, directory "rtfixes".  This
     contains official patches to AOS plus several other random files
     full of useful info.

     Also, several 4.3BSD patches were posted to the Usenet newsgroup
     "comp.bugs.4bsd.ucb-fixes"; these are available for anonymous ftp
     from vangogh.cs.berkeley.edu, directory 4.3/ucb-fixes, and also
     from several other sites.
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
A.6  - What are the different C compilers for AOS?

     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     Submitter: Keith Moore     date: Mon Apr 12 17:14:45 1993

      Three different C compilers came with the Dec 1988 release of AOS:

      "hc" is the MetaWare High C compiler, version 2.1n.

      "hc1.4" is an old version of MetaWare High C.

      "pcc" is a port of the Portable C Compiler (dating back to Unix V7
      days) to the RT.  It does not generate very good code, but is
      sometimes useful to work around hc bugs.

      Each of the compilers is useful sometimes; none of them suffices
      for every occasion.  The MetaWare compilers generate reasonably good 
      code, but are notorious for optimizer bugs.  They recognize a language
      which is almost, but not quite, ANSI C.  (One of its worst sins is
      #defining __STDC__ when the language it accepts is not ANSI C; 
      adding a -U__STDC__ to the command line cures all kinds of evil.) 
      Pcc is sometimes good for compiling old code that the MetaWare compiler 
      barfs on, when you don't care about performance.

      In fact there were at least three versions of hc2.1 available at
      various times...hc2.1n was supplied with the Dec 1988 system, and
      hc2.1s and hc2.1y were available via uucp from 'ibmsupt' later on.

      Hc2.1n is buggy enough that you'll have trouble, say, building a
      working copy of X11R? with it.  Unfortunately, even the latest of
      these (hc2.1y) had bugs in code generation which caused kernels
      based on this compiler to break.  In general, however, you can use
      hc2.1s or hc2.1y.

      To find out what version you have, compile a small program and look
      at the resulting .o file.  Like so:

          echo 'main() {printf ("hello,world\n"); }' > foo.c
          cc -c foo.c
          nm foo.o | grep hc2.1

      ...and you'll see something like

          00000000 A .oVhc2.1y

      Here's a small hack that allows me to use these interchangably:

      ===========================================================
	#include <stdio.h>

	/*
	 * hc-hack.c
	 *
	 * This program allows you to install several different versions
	 * of hc and run each of them by name (e.g. "hc2.1s").
	 * This is useful because no version of hc yet produced compiles
	 * everything without significant brain damage. 
	 * To install, copy this binary to somewhere in the
	 * search path (perhaps "/usr/bin"), and create a link for every 
	 * version of hc you have (example: "ln hc-hack hc2.1n").
	 * Then create a directory for each version of hc in /usr/lib
	 * (example: /usr/lib/hc2.1n), and place the appropriate versions
	 * of hc1com and hc2com in that directory.
	 * One of these directories will probably contain links to the copies
	 * of hc[12]com in /usr/lib, which hc uses by default.
	 *
	 * Now you can run hc2.1n, hc2.1s, or hc2.1y as you need to.
	 */
	
	main (argc, argv)
	char **argv;
	{
	    char *basename;
	    char *strrchr (char *, char);
	    char **new_argv;
	    char hc_lib_dir[1024];
	    char *calloc (unsigned int, unsigned int);
	    int i;
	
	    basename = strrchr (argv[0], '/');
	    if (basename == NULL)
	        basename = argv[0];
	    else
	        basename = basename + 1;
	
	    sprintf (hc_lib_dir, "-B/usr/lib/%s/", basename);
	
	    new_argv = (char **) calloc (argc + 2, sizeof (char *));
	    new_argv[0] = "hc";
	    new_argv[1] = hc_lib_dir;
	    for (i = 1; i < argc; ++i)
	        new_argv[i + 1] = argv[i];
	    new_argv[argc + 1] = NULL;
	
	    fprintf (stderr, "%s", new_argv[0]);
	    for (i = 1; i < argc + 1; ++i)
	        fprintf (stderr, " %s", new_argv[i]);
	    fprintf (stderr, "\n");
	
	    execv ("/bin/hc", new_argv);
	    perror ("/bin/hc");
	    exit (1);
	}
      ===========================================================

     In addition to the compilers above, gcc 2.x can generate code
     for the RT.  It is availble for anonymous ftp prep.ai.mit.edu,
     directory pub/gnu, and from other GNU/FSF archive sites.
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
A.7 - How do I make new SAUTIL and Installation Miniroot diskettes?

     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**
     Submitter: Keith Moore     date: Mon Apr 12 17:14:45 1993

      Become "root" and do the following:

          % cd /usr/sys/dist
          % make MINIROOT
          % make diskette
          % sautil

      + "make MINIROOT" creates a MINIROOT kernel by munging a copy of
         the system GENERIC kernel config file and doing a make. 
         It takes a long time.
      + "make diskette" copies the necessary files for an Installation
        Miniroot diskette to a 1.2 Mbyte 5 1/4 inch floppy disk.
      + "sautil" creates a bootable standalone utilities disk on a 
        360K 5 1/4 inch floppy disk.

      Both "make diskette" and "sautil" will format the disk for you.
      Be sure and use the right kind of disk for each.
     ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**

------------------------------
A.8 -  Where can I find an AOS device driver for:

       + WD8003 ethernet card
 	 Anon ftp to ftp.cis.ufl.edu (128.227.100.252),
         directory ibm-rt-fixes,  file wd8003e.tar.Z

       + Adaptec SCSI
 	 Anon ftp to ftp.cis.ufl.edu (128.227.100.252),
	 directory ibm-rt-fixes, file scsi.tar.Z

------------------------------
A.9 - Where can I get X11R5 for AOS and how do I get it running?

      [Someone needs to fill this one in...particularly the stuff
      about the different X servers like the one for the megapel that
      didn't come with the MIT code. - MW ] 

------------------------------
A.10 - What other operating systems are available for the RT?

      At the time of this posting, the following operating systems 
      have been available for the RT processor.  Availablility of these
      systems is unknown and unfortunately problematic.

	[ This section needs LOTS of work! - MW ]

 	AIX V2 -  Advanced Interactive Executive
	   Vendor:  International Business Machines
           Systems: IBM PC RT 6150 and 6151
           Announced: Jan 1, 1986 (AIX V1.0)
	   Available: Not generally, discontinued on June 1, 1991.
	   Last Version: 2.2.1
	   Distribution: Binary format only, on installp disks.
			 See section S.5 below.
	   Information source: IBM announcement letters 286-004,
		 286-011 and 286-259
	   Note: Other versions of AIX exist for other platforms:
		AIX V1.3 - IBM PS/2 and compatible 80386 processors.
		AIX/ESA  - IBM 3090 mainframes
		AIX V3.2 - IBM Risc/System 6000 processors.

	AOS    -  Academic Operating System
	   Vendor:  IBM
	   Available: Not generally.  Originally from IBM, but most academic
                      instutions that have RT systems and Berkley source
                      liscenses were able to get the full source.
	   Last Version: AOS43 Dec88 ?
	   Distribution: Source
	   Information: IBM Announcement letter xxx-xxx,
                        RPQ P83008 Program Number 5799-WZQ
                        and usenet news information.

	BSD/RENO  - ?
	   Vendor:  Berkley?
	   Available: Unknown.  This version is a combination of the AOS
		      drivers and low level support routines, with the
		      RENO distribution of BSD.  Never made generally
		      available.  Found at academic instutions that have
		      access to both AOS and RENO sources.
	   Version: Reno?
	   Distribution: Source?
	   Information source: Netnews discussions.
	
        MACH   - ?
	   Vendor: Mt. Xinu ?
	   Available: ?
	   Version: msd 2.6 ?
	   Distribution: ?
	   Information source: Gleaned from Netnews posting May 21, 1991
	
        PICK   - (Named after author Dick Pick, of PICK Systems, Inc.)
	   Licensee: Seattle OS, Inc., PICK Systems, Inc. Major shareholder.
           Systems: IBM Series/1 and IBM PC RT
           Completed: 1982 and 1987, respectively
           Processor: IBM series/1 and PC RT
	   Available: Unknown
	   Version: ?
	   Distribution: Unknown, Binary system images?
           Information source: Exploring the PICK Operating System
		By Jonathan E. Sisk and Steve VanArsdale
		Hayden Books, Second Edition 1989
		ISBN 0-672-48412-9
	   Note: PICK is available for a variety of processor hardware and
                 platforms including, but not limited to:
	     IBM PC/XT/AT/RT/Series-1 and IBM 4331/4361/303x/9370 (PICK/370),
	     Intel 8086/80286/80385, Motorola MC68000/68020 (several vendors),
             Zilog Z8000 (ADDS Mentor), HP 3000, Microdata, Nixdorf 8890 VM.

------------------------------
A.11 - Using non-IBM ESDI drives with AOS.

      Needs filling in. ?????

------------------------------
A.12 - Using a Non-IBM SCSI adapter with AOS.

     Using a Non-IBM SCSI adapter and single ended disks is possible with
     AOS using a different SCSI card, and additional device driver support. 
 
      Needs filling in. ?????

------------------------------
A.13 - Modifying AOS to support higher serial port speeds.

      Needs filling in. ?????

------------------------------
9.0   Credits, Acknowledgements and other information.

X.1 - Acknolowgements and copyright information.

   This file is provided AS IS with no warranties of any kind as to the
   usefullness/correctness of these procedures/questions.  The author
   shall have no liability with respect to the infringement of copyrights,
   trade secrets or any patents by this file or any part thereof.  In no
   event will the author be liable for any lost revenue or profits or
   other special, indirect and consequential damages.

   IBM, AIX, AT, XT, RT, RT PC and RT Personal Computer are trademarks of
     International Business Machines Inc.
   UNIX is a registered trademark of American Telephone & Telegraph in the
     United States of America and other countries.
   Any other trademarks not specifically mentioned are owned by their
     respective companies.

X.3 - Credits for AOS:

   The following people have either submitted articles for inclusion,
   made suggestions, or had parts of old articles included within
   re-arranged information.  I wish to thank them for their assistance.
   If you want your name dropped please let me know.

  Keith Moore             <moore@cs.utk.edu>     BITNET: moore@utkvx
  Mark Dapoz              <md@bsc.no>

========================= end of FAQ ibm-rt-faq/aos ===========================

Mark Whetzel                          | My own RT system.. My own thoughts..
DOMAIN: markw@antimatr.hou.tx.us      | IBM RT/135 running AIX 2.2.1 
UUCP ..!menudo!lobster!antimatr!markw | comp.sys.ibm.pc.rt FAQ maintainer
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From: faq-rt@antimatr.hou.tx.us (Mark Whetzel)
Newsgroups: comp.sys.ibm.pc.rt,comp.answers,news.answers
Subject: COMP.SYS.IBM.PC.RT: IBM RT - AOS - Frequently Asked Questions
Summary: This posting contains Frequently Asked Questions 
         (and their answers) and general information, hints and tips
         for using AOS on IBM RT (615x) computers.
Keywords: IBM RT PC software FAQ 6150 6151 6152 AIX VRM AOS MACH PICK
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Date: 12 Dec 93 02:01:00 GMT
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