[mythtv-users] Shutdown / startup questions

[Brian Foddy]

I'm a many year users but tring to employ the automatic shutdown  and startup 
options for the first time, but am having problems with either my 
understanding or lack of features.

My environment has 2 machines, a master BE with several tuner cards, and a 
slave BE / FE machine with a couple more tuners.  Mysql runs on the BE.

What I'd like to do, is keep the BE machine running 24x7 as it serves other 
server duties, and have it startup the slave be only when it needs the tuner 
cards it contains.  Then ideally, when I exit the FE program, have it decide 
to shutdown the slave BE/FE machine if its not needed anytime soon.

What I've tried, is creating a WOL script one the master BE with simply:
-------------
#!/bin/bash
ether-wake whisper
-------------

The whisper host startup is set to auto start the backend process and launch 
mythwelcome (or mythfrontend) automatically with autologin.  The WOL above 
works if run manually with sudo as below.

and set:
Startup command:  unused
Pre shutdown check-command:  /usr/local/bin/mythshutdown
Slave BE wake command:  sudo /usr/local/bin/wake_whisper.sh   <the above>

and the other options default or unused.

The first test of creating a scheduled recording where the slave is needed 
failed to start the command.

As I browse through the variety of wiki / doc entries, I don't see anything 
like what I describe.  I'm starting to suspect startup/shutdown can only be 
used to bring everything up / down, not piece-meal like I want.

Is what I'm describing possible by default?  If not, I might be open to more 
serious development to make it happen?  And finally, once this is working, 
then I'd like to evolve the process to using suspend to disk or ram, but 
that's down the road I think.

Brian