What is purpose of /init

[Yang, Chengwei]

-----Original Message-----
From: kernelnewbies-bounces at kernelnewbies.org [mailto:kernelnewbies-bounces at kernelnewbies.org] On Behalf Of Rahul Bedarkar
Sent: Thursday, August 02, 2012 2:35 PM
To: richard -rw- weinberger
Cc: kernelnewbies at kernelnewbies.org
Subject: Re: What is purpose of /init

Thanks Richard !

And what is
exec 0</dev/console
exec 1>/dev/console

That means redirect 0 and 1 to /dev/console.

On Thu, Aug 2, 2012 at 5:24 AM, richard -rw- weinberger <richard.weinberger at gmail.com> wrote:
> On Wed, Aug 1, 2012 at 4:03 PM, Rahul Bedarkar <rpal143 at gmail.com> wrote:
>> Hi,
>>
>> I just saw contents of /init on my system.
>>
>> #!/bin/sh
>> # devtmpfs does not get automounted for initramfs /bin/mount -t 
>> devtmpfs devtmpfs /dev exec 0</dev/console exec 1>/dev/console exec 
>> 2>/dev/console exec /sbin/init $*
>>
>> Can someone explain what is meant for ?
>
> It's a hack to get devtmpfs mounted before init starts...
> Looks like your distro does not know CONFIG_DEVTMPFS_MOUNT. :-)
>

I think that's not true, AFAIK, if kernel found /init, it will not populate devtmpfs
automatically even though CONFIG_DEVTMPFS_MOUNT=y.

--
Thanks,
Chengwei

> --
> Thanks,
> //richard

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