Re: ESX4i and gPXE boot

"Arends, R.R." <[email protected]> Wed, 16 Dec 2009 09:56:47 +0100
Newsgroups gmane.network.etherboot.user
Message-ID <[email protected]>
Did you guys made any progress on the following? I came across the same issue now, when adding esxi 4 update 1 installation in pxelinux menu.
Could i help testing?

>>> On 15-12-2009 at 10:22, in message
<[email protected]>, Stefan Hajnoczi
<[email protected]> wrote:
> On Mon, Dec 14, 2009 at 4:03 PM, Viswanath Krishnamurthy
> <[email protected]> wrote:
>>>> 2. When optionROM is burnt to a card, gPXE hangs when trying to load
>>>> image.tgz file (which is about 170MB). It consistently fails here and
>>>> older
>>>> versions seemed to work fine. (COMBOOT and Multiboot is disabled in
>>>> gPXE).
>>>> mbbot.c32 is the one shipped in ESX4i. I am wondering if gPXE memory is
>>>> getting overwritten by the image being downloaded causing this behavior.
> 
> You know the old version works, so we can identify the code change
> that introduced the bug using git-bisect(1).  Bisection involves
> testing gPXE versions between the known good and bad points to find
> the first version where the hang occurs.
> 
> The bisection process is efficient because it tests the mid-point
> between the known good and bad points rather than forcing you to test
> every single version, one at a time.  It shouldn't take long to do
> this and the result will be the git commit which broke your use case.
> 
> The full man page for git-bisect(1) is here:
> http://www.kernel.org/pub/software/scm/git/docs/git-bisect.html 
> 
> There are tutorials on git-bisect(1) you may be interested in:
> http://jbowes.wordpress.com/2007/02/18/git-bisect-a-practical-example-with-yum/ 
> http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy- 
> kernel-patches/
> http://www.winehq.org/docs/winedev-guide/x1348 
> 
> You will need git and working build environment.  You can grab the
> gPXE git tree like this:
> git clone 'git://git.etherboot.org/scm/gpxe.git'
> 
> If you would help doing the git-bisect(1), please join the #etherboot
> IRC channel on chat.freenode.net.
> 
> Stefan
> 
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