Re: User/kernelspace stuff to set/get kernel variables

H. Peter Anvin (hpa@zytor.com)
13 Dec 2001 12:34:49 -0800


Followup to: <20011213155532Z284289-18284+114@vger.kernel.org>
By author: DevilKin <devilkin@gmx.net>
In newsgroup: linux.dev.kernel
>
> Hello
>
> I've been looking on the web, and couldn't really find what i would want...
>
> Basically: is it possible to - one way or another - set variables at
> kernel boot and read those using userspace utilities?
>

The entire kernel command line is quoted verbatim in /proc/cmdline.

Additionally, items of the form foo=bar that are not recognized by the
kernel become environment variables to init, and items not of that
form *sometimes* become command-line options to init...

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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