Re: devfs patch v21 available

Miquel van Smoorenburg (miquels@cistron.nl)
31 Mar 1998 17:21:40 +0200

In article <199803310849.SAA03798@vindaloo.atnf.CSIRO.AU>,
Richard Gooch <rgooch@atnf.CSIRO.AU> wrote:
>Andreas Jellinghaus writes:
>> > # cd /sbin
>> > # mv init init.real
>> > # echo '#! /bin/sh\nmount -n -t devfs none /dev\n/sbin/init.real' > init
>> > # chmod a+x init
>>
>> did you try this one ?
>
>Er, no, since I never needed that.

With a recent sysvinit (2.74), you can just do this in a startup script:

mknod -m 600 /dev/initctl p
kill -USR1 1

>From the manpage:

SIGUSR1
On receipt of this signals, init closes and re-opens
it's control fifo, /dev/initctl. Useful for
bootscripts when /dev is remounted.

>> as far as i know, you can't run init as slave process.
>
>Really? Why not?

It checks if it is really init with (getpid() == 1). Also, it wait()s for
all processes that die; the process with pid #1 _has_ to do that.

Mike.

-- 
 Miquel van Smoorenburg | Our vision is to speed up time,
    miquels@cistron.nl  |   eventually eliminating it.


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