Re: /etc/runit/3 not executing correctly...

[Gerrit Pape <pape@smarden.org>]

On Tue, Jul 27, 2004 at 08:26:35PM +0200, John Nielsen wrote:
> On Tuesday 27 July 2004 18:55, John Nielsen wrote:
> > > > That message is not from runit, did you post your complete stage
> > > > 3 script, or only a top part of it?
> > >
> > > Yes, I posted all of the script. I had cut it down as much as
> > > possible to troubleshoot.

You should extend it.  Stage 3 is meant to do all tasks necessary to
prepare the system for shutdown, this includes stopping services and
unmounting (mounting read-only) filesystems.  After stage 3 has
finished, runit tells the kernel to shutdown or reboot (depending on the
permissions of /etc/runit/reboot).

> > > I really dont know where that message somes from then? That
> > > textstring "Unmounting any remaining filesystems" doesnt exist in
> > > any of the existing boot scripts. I just doublechecked, and it
> > > isnt there. Where else could it come from? The kernel itself?

> > I found out where the message comes from. It is generated by the
> > util-linux version of shutdown I am using. Its last action before it
> > halts the computer is to umount everything that is left.

> > So all of this seems to be caused by util-linux shutdown not wanting
> > to play nice with runit.

Yes, util-linux's shutdown does things stage 3 actually should do, from
the man page:

 When the shutdown time arrives, shutdown notifies all users, tells
 init(8) not to spawn more getty(8)'s, writes the shutdown time into the
 /var/log/wtmp file, kills all other processes on the system, sync(2)'s,
 unmounts all the disks, sync(2)'s again, waits  for a second, and then
 either terminates or reboots the system.

Additionally it seems to work with some fixed timeout.  The shutdown
program killed your stage 3 script and rebooted the system while runit
still was preparing the shutdown.

> > I would really love to be abel to completely dump the sysvinit
> > package. I guess my case is a special one since I am not using a
> > standart distro.

As Charlie already said, simply don't use a shutdown program, extend
stage 3, and use `init 0` and `init 6` instead.

> I noticed a strange problem however. Every time i shut down, the
> getties dies except for the getties that are logged in. I have to
> start the shutdown script and then log out on that console.

That's normal, see Charlie's answer on this.

> I know that I can specify a timeout on svwaitdown that kills the
> service when the timeout has been reached, only this doesnt seem like
> a very clean shutdown. Is it possible to shut down the session cleanly
> without killing it?  Im talking about something along the lines of
> what sysvinit does.

What's sysvinit doing?  AFAICS it kills -9 your shell, but doesn't tell
you about that.

Regards, Gerrit.