Re: Why isn't init PID 1?

[Igmar Palsenberg]

On Wed, 31 Jan 2001, Paul Powell wrote:

> Hello,
> 
> I have a bootable linux CD that runs a custom init. 
> Under most versions of linux init runs as process ID
> one.  Under my bootable CD, it runs as process ID 15. 
> I need it to run as PID 1 so that I can execute a
> kill(-1,15) without killing init.
> 
> The boot CD uses and initrd image to load drivers. 
> The linuxrc file looks like:
> 
> #!/bin/sash
> 
> aliasall
> 
> echo "Loading aic7xxx module"
> insmod /lib/aic7xxx.o
> echo "Loading ips module"
> insmod /lib/ips.o ips=ioctlsize:512000
> echo "Loading sg module"
> insmod /lib/sg.o
> echo "Loading FAT modules"
> insmod /lib/fat.o
> insmod /lib/vfat.o
> 
> echo "Mounting /proc"
> mount -t proc /proc /proc
> init
> umount /proc
> 
> Does it run as PID 15 because I execute insmod and
> mount before running init?

Yes. First program to run get PID 1. 

Solution : fork() in init and load the modules in the child.

	Igmar