[syslinux] Availability of a variable of the TFTP server IP addressto be used in pxelinux.cfg/default

[H. Peter Anvin]

On 03/26/2010 06:14 AM, Ferenc Wagner wrote:
> "STEFFENS, Michael"<Michael.STEFFENS at newellco.com>  writes:
>
>> Also for the information passed to the Linux OS via the APPEND in
>> pxelinux.cfg/default I don't even know how/where these are
>> passed/executed. I expect to find it somewhere in the INITRD of the
>> distributions but it could be also in the compressed kernel file which I
>> simply don't know.
>>
>> Well, as you might have read in the lines above I try to avoid using
>> IPAPPEND as it makes the whole thing quite complex for a novice. If
>> there's nothing else that would be the way to go then but... Am I really
>> the only one having the same boot images deployed to many different
>> PXE/TFTP servers? How are others passing PXE/TFTP server specific
>> information to the PXE bootable OS? Especially when I read in the docs
>> that the usage of IPAPPEND is not recommended.
>
> The solution detailed at
> http://syslinux.zytor.com/wiki/index.php/Comboot_API wasn't accepted.
> But that page mentions the -dhcpinfo option of linux.c32, which is
> available in the stock binaries.

Yes, I would really like a uniform way of handling macros, not specific 
to the Linux command line loader.  In particular I'd like to make it as 
compatible as possible with the gPXE macro system.

	-hpa