Re: Patch for export IP addresses from PXE into grub2 enviroment variables

[Felix Zielcke]

Am Mittwoch, den 14.10.2009, 23:53 -0700 schrieb Seth Goldberg:
> Hi,
> 
>    That's actually not sufficient -- we need the entire DHCPACK to be passed 
> (somehow) to the loading kernel.  I've discussed this a bit with phcoder, and 
> he suggested adding another member to the multiboot structure off of which we 
> can hang the DHCPACK packet.  The environment variables may also have value, 
> for other OSes that don't use multiboot.
> 
>   --S
> 
> Quoting Aleš Kapica, who wrote the following on Thu, 15 Oct 2009:
> 
> > Could I ask you for apply patch from attachment on pxecmd.c in grub2, 
> > please? 
> > It's adding an option -s to the command pxe, which do make possible set IP 
> > addresses of the server and the client machine, got from PXE, among grub2 
> > enviroment variables.
> > DHCP gives IP according to MAC address, and we use it to identify the 
> > client 
> > station by IP address.
> >
> > Thanks a lot, with regards Aleš Kapica
> >

Having the Client IP avaible inside grub.cfg might be useful for some.
Then you could have one grub.cfg for all your machines and if one or a
small number of it needs some special stuff, you could just check for
the IP inside the grub.cfg. Then you don't need to use a seperate one
for them.

But maybe this isn't that useful if option-150 gets implemented which
Yoann requested.

-- 
Felix Zielcke
Proud Debian Maintainer and GNU GRUB developer