Re: Runit on tty1

[Gerrit Pape <pape@smarden.org>]

On Fri, Jun 30, 2006 at 10:10:27AM +0100, Richard Downing wrote:
> Richard A Downing FBCS CITP wrote:
> >Further investigation reveals that runit, as process 1, is marked by
> >ps-ef as being on tty1 and the bash process started by getty-1 is marked
> >as ? for it's TTY.  I suspect this is the problem, as it is quite unlike
> >my other runit-based systems.
> >There are no errors in the runsvdir proctitle.
> >
> >Does anyone have any idea what has gone wrong?
> 
> I've just upgraded to runit-1.6.0, but I have the same problem.  What 
> could cause runit to be connected to tty1?

I'm not sure, sorry.  This is what the runit program does:

 o on startup open /dev/console and set controlling terminal through
    ioctl(ttyfd, TIOCSCTTY, (char *)0) (if possible)
 o forking stage 1, which should have full control of console to start an
   emergency shell for example, runit reopens /dev/console read-write
 o forking stage 2 or 3, runit drops the controlling tty through
    setsid()

See src/runit.c, you could test removing the ioctl(), or adding setsid()
at some place.  Please report back if you happen to find out what's
different on your system.

Thanks, Gerrit.