Re: Adding a hook to shutdown.c & halt (reboot.c) to call a script.

Hi, Reference:
> From:		John Baldwin <[email protected]> 
> Date:		Wed, 10 Jul 2013 14:35:56 -0400 

John Baldwin wrote:
> On Friday, July 05, 2013 6:35:02 pm Julian H. Stacey wrote:
> > > shutdown(8) signals init (unless -o is given), which will run
> > > /etc/rc.shutdown from multi-user mode. The same applies to ctrl+alt+del,
> > > kernel-controlled overheating shutdown, etc.
> > 
> > Thanks Jilles, So I appended to my rc.shutdown
> > 	# -x not -f below to also allow a symbolic link to work.
> > 	if [ -x "/etc/rc.shutmedia" ]; then
> > 		/etc/rc.shutmedia
> > & renamed my URL to  http://www.berklix.com/~jhs/bin/.sh/rc.shutmedia
> > 
> > 
> > > reboot(8) and halt(8) do not involve init and do not run any shutdown
> > > scripts. I think they should be changed to signal init (except reboot
> > > -q, halt -q) and should not be used until then. However, there are
> > > apparently some problems with that.
> > > 
> > > The incorrect umount order should perhaps be fixed in the kernel.
> > 
> > Yes, bad enough for a local laptop to hang, 
> > if it was a remote server, very nasty.
> 
> You can just put a script in /usr/local/etc/rc.d.  If it has the
> 'shutdown' keyword it gets run with a 'stop' command during shutdown.
> 
> (Just grep for "shutdown" in /etc/rc.d to find example scripts)

Thanks John, I tried, it works :-)

This thread also includes USB shutdowns so I'm cross referencing:
 http://lists.freebsd.org/pipermail/freebsd-stable/2013-July/074280.html

Cheers,
Julian
-- 
Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich http://berklix.com
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