linux-kernel - Re: CONFIG_SECURITY_ROOTPLUG [was: Re: 2.6.27-rc7 no init found on the root partition?]

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Message-ID: <20080929231102.GA4665@kroah.com>
Date:	Mon, 29 Sep 2008 16:11:02 -0700
From:	Greg KH <greg@...ah.com>
To:	Lukas Hejtmanek <xhejtman@....muni.cz>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: CONFIG_SECURITY_ROOTPLUG [was: Re: 2.6.27-rc7 no init found on
	the root partition?]

On Thu, Sep 25, 2008 at 06:54:00PM +0200, Lukas Hejtmanek wrote:
> Hello,
> 
> I finally found my problems with no init found.
> 
> It was caused by the CONFIG_SECURITY_ROOTPLUG option.
> 
> I wonder why this option in 2.6.26.3 kernel allows the kernel boot up, while
> with 2.6.27-rc7, the kernel is unable to run even init.

If you enable that option, you have to have the specific USB device
plugged into your system in order for any process to run as root (like
init).

So, odds are you don't have this specific device, so either specify a
different device id, or don't build it into your kernel :)

thanks,

greg k-h
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