On Thu, Dec 13, 2001, DevilKin wrote:
> 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?
Sorry, I don't know, but see below for possible solution to your problem anyway.
> for instance: i boot my kernel (using any old bootmanager that accepts kernel params)
>
>
> LILO: linux network=dhcp
You might want to familiarize yourself with the following kernel parameter:
"ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>"
where most options are obvious, and you'll probably want device to be
"eth0" and autoconf to be "dhcp".
HTH,
Daniel
> and later, in the init scripts, i check the value of this variable using some sort of userspace program, and if it happends to be 'dhcp' i'll invoke the dhcp client.
> Otherwise i'd just give a static address.
>
> I have other uses for this, for instance, you want your disks to be FSCK'ed, but don't wanna boot first, or, don't wanna go in single user mode
>
>
> LILO: linux dofsck=true
>
>
> Does something like this exist? Is it implementable in an easy way? (I know a few programming languages, but only little C(++)....)
>
> Thanks
>
>
> DK
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-- Daniel A. Freedman Laboratory for Atomic and Solid State Physics Department of Physics Cornell University - 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/
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