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init not PID 1

Buildroot Michael Burghart 3 participants 4 messages Apr 9, 2011 – Apr 10, 2011

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Michael Burghart

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Hi,

once again. I just found out that I cannot shutdown with init. It complains:

init: must be run as PID 1

(which is correct).
But why is it not 1?

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cheers
- -micha-
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#1 lore raw
Quoted 11 lines · Michael Burghart

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Hi,

once again. I just found out that I cannot shutdown with init. It complains:

init: must be run as PID 1

(which is correct).
But why is it not 1?

Did you not start it from the kernel, but perhaps from a shell script? The first process the kernel starts is PID 1.

Quoted 9 lines

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cheers
- -micha-
- --
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Quoted 13 lines

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#2 lore raw

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Am 09.04.2011 20:54, schrieb Jason Curl:

Quoted 4 lines

(which is correct).
But why is it not 1?

Quoted 1 line

Did you not start it from the kernel, but perhaps from a shell script?

I have a look. Normally I start my kernel and thought the kernel keeps track of the init process.

Quoted 1 line
Quoted 1 line

The first process the kernel starts is PID 1.

sure, but that normally is init. Don't know why it's not here.

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cheers
- -micha-
- --
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#3 lore raw
In reply to Michael Burghart
Quoted 8 lines · Michael Burghart

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Hi,

once again. I just found out that I cannot shutdown with init. It complains:

init: must be run as PID 1

You have to use "halt" or "poweroff". Busybox does not support runlevels so you cannot run "init 0" to shutdown your system.

Quoted 2 lines

(which is correct).
But why is it not 1?

This message comes from the new spawned init process, which gets a "usual" pid like any other process. There should already be an init process with the pid 1.

Quoted 2 lines

cheers
- -micha-

Regards,
Gerhard
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