Re: [parisc-linux] How to set serial console on 712 (fwd)

[Matt Taggart <taggart@rascal.fc.hp.com>]

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 
graphics
 >> |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:
 >
 >-----
 >
 >3.1.2.3.3. 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,

-------------
CONFIGURING A RS-232 CONSOLE on a 712

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 
prompt.

These instructions will configure an RS-232 console with 9600 Baud, 8 data 
bits, 1 stop bit, and no parity.

HOW-TO INSTRUCTIONS

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 
OS.
     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) 2/0/4.283.0.0.0.0.0 
     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 
you
do, I have one of the "dagger" cards that can be loaned out to fix it.

-- 
Matt Taggart
taggart@fc.hp.com