Date: Wed, 10 Jul 2013 14:35:56 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-mobile@freebsd.org Cc: "Julian H. Stacey" <jhs@berklix.com>, Jilles Tjoelker <jilles@stack.nl> Subject: Re: Adding a hook to shutdown.c & halt (reboot.c) to call a script. Message-ID: <201307101435.56193.jhb@freebsd.org> In-Reply-To: <201307052235.r65MZ27H028531@fire.js.berklix.net> References: <201307052235.r65MZ27H028531@fire.js.berklix.net>
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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) -- John Baldwin
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