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

Jan Janak (J.Janak@sh.cvut.cz)
Thu, 13 Dec 2001 20:48:28 +0100


On Thu, Dec 13, 2001 at 04:58:05PM +0000, Russell King wrote:
> On Thu, Dec 13, 2001 at 05:20:37PM +0100, Jan Janak wrote:
> > If you pass a parameter that is not recognized by the kernel, it will be
> > passed to init as environment variable, so all you need to do is check
> > for the variable in your init scripts ($network in your example).
>
> IIRC, Red Hat scripts grab them from /proc/cmdline

Only parameters of the form foo=bar will be set as environment variables (if not
recognized by the kernel).
AFAIK Red Hat scripts grab parameters of different form from /proc/cmdline.

But parameter of the form network=dhcp will be set as environment variable and
this is IMHO the easiest way how to get the parameter value in startup scripts.

regards, Jan.

>
> --
> Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
> http://www.arm.linux.org.uk/personal/aboutme.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/