Re: RFC Patch [0/2] PXE Add support for proxy DHCP

[Alkis Georgopoulos]

Sorry I just joined the list, the original thread that I reply to is:
https://lists.gnu.org/archive/html/grub-devel/2014-04/msg00091.html

Thousands of LTSP installations use proxy DHCP to netboot clients.
Unfortunately grub has a bug and tries to use the real DHCP as the TFTP 
server, instead of the proxy DHCP, and fails to fetch grub.cfg.

The proposed patch by Mroczek, Joseph T addressed this issue,
and Vladimir 'φ-coder/phcoder' Serbinenko replied that he even had a 
better one.
Why weren't they merged? Could I help with testing or something?

It'll be extremely valuable now with UEFI, and especially with secure 
boot, since shimx64.efi > grubnetx64.efi is essentially the only option 
there.

The respective commit in shim was:
https://github.com/rhboot/shim/commit/5f4fd5364109c80934b7837255ddde61f572fd69

Thanks,
Alkis Georgopoulos
LTSP developer

--
Replying to this message:

Re: RFC Patch [0/2] PXE Add support for proxy DHCP
From:   Vladimir 'φ-coder/phcoder' Serbinenko
Subject:        Re: RFC Patch [0/2] PXE Add support for proxy DHCP
Date:   Sun, 20 Apr 2014 16:05:42 +0200
User-agent: 	Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 
Icedove/24.4.0

On 19.04.2014 02:26, Mroczek, Joseph T wrote:
> Hello:
>
> Currently, grub does not support getting boot server information from 
a proxy
> DHCP server. This patch set adds this support for EFI. If the 
approach is
> good, I will go back and create a i386-pc patch as well.
>
> It works by combining the contents from the two DHCP packets into a 
single
> source. This seems simpler and cleaner than updating all the DHCP 
code to
> work with multiple packets and juggling precedence across all the 
options.
>
> Any help in getting this support into grub would be greatly appreciated.
>
We have patch for similar problem for i386-pc port (attached).
The main problem with it is that it wasn't tested. If you can confirm
that it works for EFI as well (after adaptations from your patch), we
could commit pxe2.diff and necessarry adaptations on top of it.
> ~joe