Date: Thu, 24 Jan 2002 01:30:01 -0800 (PST) From: Ruslan Ermilov <ru@FreeBSD.ORG> To: freebsd-bugs@FreeBSD.org Subject: Re: conf/34109: /etc/rc.shutdown isn't run on halt(8) Message-ID: <200201240930.g0O9U1j20217@freefall.freebsd.org>
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The following reply was made to PR conf/34109; it has been noted by GNATS.
From: Ruslan Ermilov <ru@FreeBSD.ORG>
To: "Crist J. Clark" <cjc@FreeBSD.ORG>
Cc: bug-followup@FreeBSD.ORG
Subject: Re: conf/34109: /etc/rc.shutdown isn't run on halt(8)
Date: Thu, 24 Jan 2002 11:23:22 +0200
On Tue, Jan 22, 2002 at 12:10:01AM -0800, Crist J . Clark wrote:
> The following reply was made to PR conf/34109; it has been noted by GNATS.
>
> From: "Crist J . Clark" <cjc@freebsd.org>
> To: Peter Pentchev <roam@ringlet.net>
> Cc: bug-followup@freebsd.org
> Subject: Re: conf/34109: /etc/rc.shutdown isn't run on halt(8)
> Date: Tue, 22 Jan 2002 00:01:33 -0800
>
> On Mon, Jan 21, 2002 at 07:00:05AM -0800, Peter Pentchev wrote:
> > On Mon, Jan 21, 2002 at 03:42:39PM +0100, clemensF wrote:
> > > > Peter Pentchev:
>
> [snip]
>
> > > > Normally, the shutdown(8) utility is used when the system needs to be
> > > > halted or restarted, giving users advance warning of their impending doom
> > > > and cleanly terminating specific programs.
> > > >
> > > > Note the 'cleanly terminating specific programs' part :)
> > >
> > > do you suggest users do guesswork to find out if a clearly defined script
> > > is run or not? i'd prefer "... and runs /etc/rc.shutdown to cleanly
> > > terminate specific programs."
> >
> > shutdown(8) does not run /etc/rc.shutdown; init(8) does.
> > All that shutdown(8) does is initiate a system shutdown.
>
> I think the code is all sound. However, the init(8) manpage is not
> clear about when /etc/rc.shutdown is run.
>
I don't see a problem with documentation:
: Init will terminate all possible processes (again, it will not wait for
: deadlocked processes) and reboot the machine if sent the interrupt (INT)
: signal, i.e. ``kill -INT 1''. This is useful for shutting the machine
^^^^^^^^^^^^^^^^^^^^
: down cleanly from inside the kernel or from X when the machine appears to
^^^^^
: be hung.
:
: Init will do the same, except it will halt the machine if sent the user
^^^^
: defined signal 1 (USR1), or will halt and turn the power off (if hardware
^^^^^^^^^^^^^^^^^^^^^^^^^^^
: permits) if sent the user defined signal 2 (USR2).
:
: When shutting down the machine, init will try to run the /etc/rc.shutdown
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
: script. This script can be used to cleanly terminate specific programs
: such as innd (the InterNetNews server).
The best thing we can do is to join the third paragraph with the first.
Cheers,
--
Ruslan Ermilov Oracle Developer/DBA,
ru@sunbay.com Sunbay Software AG,
ru@FreeBSD.org FreeBSD committer,
+380.652.512.251 Simferopol, Ukraine
http://www.FreeBSD.org The Power To Serve
http://www.oracle.com Enabling The Information Age
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