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StepDescription / Command
1Start the emulator.# /opt/charon/bin/charon-par -f </path-to/configuration-file>
2Enter menu mode.

At the prompt Main Menu: Enter command or menu > type menu.
This will display the available menu options.

3Enter the configuration menu.Type CO to enter the configuration menu.
This will display the available configuration options.
4Activate autoboot.Type auto boot on to enable autoboot (or use the abbreviation au bo on).
Autoboot is now enabled for the next boot.
5Restart the emulator.

Stop the emulator: enter the exit command at the pa9-64>orpa9-32>prompt and hit Enter.

Start the emulator again as shown in step 1.

...

Enabling Autoboot normally involves first writing an SLT (System Load Tape) to tape, and then updating the system from tape. A Charon virtual tape can be used for this purpose. These instructions describe how to enable autoboot using a virtual tape. Charon is supplied with a preformatted autoboot file that contains "start norecovery". You can modify this file, or supply your own. Follow the steps below to create and apply the SLT:


StepCommands
1

Boot the system and log in as the Manager.

Then copy the supplied autoboot file, and load the virtual tape file on LDev 7. LDev 7 is preconfigured in SYSGEN as device 0/0/1/0.6.0 (virtual tape MKA600 using container ldev7.img in the example).

Wait for the message
" Vol (unlabelled) mounted on LDEV# 7 "
to appear on the console, and continue.

:HELLO MANAGER.SYS

:COPY AUTOBOOT.CHARON, AUTOBOOT.PUB
:DEVCTRL 7;LOAD=ONLINE

2

Use sysgen to specify the new autoboot file and write the SLT.


The line with the ? is a prompt asking for the tape number and a PIN. The PIN is represented in the sample here by the string XXX. Use the number shown in place of the XXX.

:SYSGEN
sysgen> sysfile
sysfile> aauto autoboot.pub.sys type=disc
sysfile> hold
sysfile> exit
sysgen> tape
?19:00/#S2/XXX/ LDEV# FOR "SYSGTAPE" ON TAPE (NUM)?
3Respond to the prompt. 
  • Press CTRL-A. This will display an =  character.
  • Type REPLY XXX,7 after the = character replacing XXX with the number displayed in the prompt.
  • Confirm with the Enter key.
4Wait for the message
"**boot tape is successfully built**"
before you continue.
5Exist sysgen, respond yes to the question if you really want to exit, and then shut down the system.sysgen> exit
(...)
Configuration changes are not kept yet!
Still want to exit (yes/no) ? yes
: shutdown system
6Stop and restart the emulator.

To stop, type exit at the Charon-PAR pa3> console prompt.  Then restart the emulator.

7

Reboot the system from the virtual tape on LDev 7.



Then update the system with the files from the virtual tape.

  • At the prompt Main Menu: Enter command or menu
    type boot alt (the default alternate boot path is LDev 7; if you change it, boot using the device path of the tape).
  • At the prompt Interact with IPL (Y or N)?  
    type Y.
  • At the ISL prompt
    type update config.
8

The system will display the list of files that are updated. Wait for this to finish.


9Boot normally. This IPL interaction should now be possible without interacting with IPLnot be needed.
  • At the prompt Main Menu: Enter command or menu
    type boot.
  • At the prompt Interact with IPL (Y or N)?   
    type N.

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StepDescription / Command
1(Re)start the emulator (shut down the guest OS and emulator before, as needed).# /opt/charon/bin/charon-par -f </path-to/configuration-file>
2Enter menu mode.

At the prompt Main Menu: Enter command or menu > type menu.
This will display the available menu options.

3Enter the configuration menu.Type CO to enter the configuration menu.
This will display the available configuration options.
4Activate autoboot.Type auto boot on to enable autoboot (or use the abbreviation au bo on).
Autoboot is now enabled for the next boot.
5Restart the emulator.

Stop the emulator: enter the exit command at thepa3>prompt and hit Enter.

Start the emulator again as shown in step 1.

...

To disable autoboot, follow the steps above, but use the command auto boot off instead.

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