[syslinux] keeppxe option is still broken with gpxelinux.0 in 3.75

[H. Peter Anvin]

oetelaar24 at zonnet.nl wrote:
> 
>> shlwang wrote:
>>> but it works well with pxelinux.0 in 3.75
>>
>> Did keeppxe *ever* work with gpxelinux.0 for you?
>>
>>     -hpa
> 
> I'd like to add to the discussion: on sanboot, keeppxe never worked for 
> me, but I'm not sure that it should. However, gPXE should support 
> keeping the pxe stack alive somehow...
> 

It'd be hard to directly support keeppxe on sanboot, since the SAN stack 
owns the PXE/UNDI stack at that point.

However, the question still remains if this is a regression (it worked 
it the past) or not.  If it's a regression, the best would be to do a 
bisection in the *gPXE* git repository and find the source of the 
problem; if it's not, then again, it comes down to getting gPXE to do 
the right thing.

There are also a few things which are still missing features in gPXE's 
undionly.kkpxe mode (which is what gpxelinux.0 uses); in particular the 
lack of chainloading support.  I have an idea of how to deal with it, 
and have discussed it with Michael Brown (main gPXE developer), but 
neither one of us has had the time to implement it yet.

	-hpa