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= hp712, HP 9000/712 model =
== Overview ==
== Changing to Serial Console ==
WARNING: Improper setting of the console path may cause the system to become inoperable. Beware.
Unfortunately, HP decided that the 712 should be hard to configure for headless use.
Briefly, you must get to the HP-UX bootloader prompt (which they call the ISL) which will allow you to permanently set your preferred console location to the first serial port at 9600 8N1.
The original source of this information is http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html.
To change to a serial console, you need:
* a PS/2 style keyboard
* a monitor with VGA style interface
* the HP-UX ISL (either an HP-UX bootable hard drive or netboot)
First, you need to get to the BootROM prompt. When your system prints the following on screen, press and hold ESC until you get the BOOT_ADMIN> prompt:
Press <ESCAPE> to stop boot sequence.
=== Setting monitor type ===
If your display doesn't show properly, the frequency may be out-of-range. You can select the monitor type suitable to your display.
If your 712 has the add-in VRAM board, normal VGA 680x480 mode is monitor type 7. Without the VRAM board, the number may be different (possibly 5?).
BOOT_ADMIN> monitor 7
        Monitor Choices
Type    Resolution    Frequency
----    ----------    ---------
  1      1280x1024        72Hz
  2      1024x768        75Hz
  3      1024x768        70Hz
  4      1024x768        75Hz    Flat Panel
  5      1280x1024        60Hz
  6      1024x768        60Hz
  7      640x480        60Hz
  8      1280x1024        75Hz    VESA
  9      1024x768        75Hz    VESA
10      800x600        75Hz    VESA
11      640x480        75Hz    VESA
12      1280x1024        72Hz    Greyscale
13      1280x1024        50Hz
Current Monitor Type is
  7      640x480        60Hz
If you have HP-UX installed on local disk
BOOT_ADMIN> boot pri isl
ISL Revision A.00.38  OCT 26, 1994
=== Boot 712 from LAN ===
BOOT_ADMIN> boot lan isl
ISL Revision A.00.25 November 18, 1992
=== Setting console ===
Run the following command to set your 712 to use a serial RS-232 console with 9600 Baud, 8 data bits, 1 stop bit, and no parity:
          ISL> conspath 2/0/4.0x283
To set your 712 to use the local console (i.e. keyboard and screen), run the following command:
          ISL> conspath 1/0/0.0
You can use the display and information commands to verify that your settings have been stored properly. Once you're sure everything looks right, power cycle your workstation to start using your serial console.
Additionally, you can temporarily use the local console by pressing the “Esc” key on the PS/2 keyboard while resetting. This is setting only affects the console location temporarily and only works with firmware rev 1.6 and later.
=== Shot ===
BootRom Version    1.6 
Memory Size:  192 MB
(c) Copyright 1990-1993, Hewlett-Packard Company.
All rights reserved
Press <ESCAPE> to stop boot sequence.
Selecting a system to boot.
Command                            Description
-------                            -----------
Auto [boot|search] [on|off]        Display or set auto flag
Boot [pri|alt|scsi.addr] [isl]      Boot from primary, alternate or SCSI
Boot lan[.lan_addr] [install] [isl] Boot from LAN
Chassis [on|off]                    Enable chassis codes
Diagnostic [on|off]                Enable/disable diagnostic boot mode
Fastboot [on|off]                  Display or set fast boot flag
Help                                Display the command menu
Information                        Display system information
LanAddress                          Display LAN station addresses
Monitor [type]                      Select monitor type
Path [pri|alt] [lan.id|SCSI.addr]  Change boot path
Pim [hpmc|toc|lpmc]                Display PIM info
Search [ipl] [scsi|lan [install]]  Display potential boot devices
Secure [on|off]                    Display or set security mode
BOOT_ADMIN> boot lan isl
ISL Revision A.00.25 November 18, 1992
ISL> display
    Fastsize value is 0000000F
    Autoboot is ON (enabled)
    Autosearch is ON (enabled)
    Primary boot path is 2/0/
    Primary boot path is (hex) 2/0/
    Alternate boot path is 2/0/
    Alternate boot path is (hex) 2/0/
    System console path is
    System console path is (hex)
ISL> conspath 2/0/4.0x283
ISL> display
    Fastsize value is 0000000F
    Autoboot is ON (enabled)
    Autosearch is ON (enabled)
    Primary boot path is 2/0/
    Primary boot path is (hex) 2/0/
    Alternate boot path is 2/0/
    Alternate boot path is (hex) 2/0/
    System console path is 2/0/4.643.
    System console path is (hex) 2/0/
=== gram form the original message ===
Matthew Wilcox writes...
>On Thu, Dec 23, 1999 at 07:45:00AM -0800, Bill Katz William" wrote:
>> |How do I set the console on my 712 to be the serial port, not the
>> |display?
>> |
>> |Thanks
>> |
>> Boot to ISL and use the conspath
>> command to change the console back to rs232.  The command to use is:
>> serial
>>        conspath 2/0/4.643
>> graphics
>>        conspath 1/0/0.0
>This contradicts the PA-RISC Booting HOWTO:
> How can I change the boot console to serial on a 712?
>Unfortunately, you can't. Although 712s are configured for in-house HP
>development to use serial console, this configuration isn't supported
>in the field. You have to use a graphics console for 712s.
>I'd like to know if this needs to be corrected.
The above statement about serial console not being "supported" on 712 is
correct. That doesn't mean you can't do it. Here are the instructions,
An RS-232 console is not a supported feature in the 712 products. For this
reason users cannot select the RS-232 port as a console from the BOOT_ADMIN
These instructions will configure an RS-232 console with 9600 Baud, 8 data
bits, 1 stop bit, and no parity.
NOTE: If the following instructions are not entered correctly, your system
may be left in an un-usable state. Contact support to "dagger" your system
in this case.
    Power up the 712 system.
    Press (ESCAPE) during boot to abort auto booting the system.
    At the BOOT_ADMIN> prompt, use the boot command and the isl keyword.
        This will stop the boot sequence at ISL instead of booting to the
    For example: 'boot scsi.6 isl'
    At the ISL> prompt, type 'conspath 2/0/4.0x283'
    At the ISL> prompt, type 'disp' and verify console path is:
        (hex) 2/0/
    If necessary re-type the conspath command above.
    Connect an RS-232 terminal to the system.
    Power cycle the system to bring it up on an RS-232 console.
As it indicates above, *BE VERY CAREFUL* or you can hose your system. If
do, I have one of the "dagger" cards that can be loaned out to fix it.
Matt Taggart
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From: Jason Eckhardt <jason@equator.com>
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To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Boot #4 and source on ftp site
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Boot test #4: This is essentially the same code as #3 but I have taken
out some delays, modified the cache flush routines, and turned
verbose (debug) mode back on. I want to make sure that not having the delays
makes no difference and that no characters get dropped when there is a lot
of text (as in debug mode). Please let me know if the test still passes
as before. Hopefully this will be the last test for a while. Kernel work
comes next.
I have uploaded the binary as well as a new source drop to the ftp site. The
source is now GPL'd and a detailed README is included which gives an overview
of the boot code operation. This source supersedes any previous source you
may have laying around.
ftp from sod.res.cmu.edu:/pub/parisc/hilo
  boot_rel_0.2.tar.gz        The latest source code and documentation.
  bootstrap_4.bin.gz        Bootstrap binary #4.
Jason Eckhardt.

Latest revision as of 04:05, 21 June 2020