[syslinux] Pxelinux 2.09 limitations

H. Peter Anvin hpa at zytor.com
Thu Jun 17 08:00:29 PDT 2004

Erwan Velu wrote:
>>There is a reason: all the label sections need to fit into a single 64K 
>>segment.  That being said, they probably could be packed more 
>>efficiently than they currently are, which takes 1K for each label section.
> Does we really need 1K per entry ? The longest I have is 285 char long. 

Well, the maximum allowed command line is 256 characters so you might 
have problems as you have it.

> It could be intresting to resize each entry to 512 bits instead of 1024
> so we'll be able to have 128 pxe entries.
> Is it possible ?

It's possible but not trivial to do right.  As a hack you could apply 
the following diff, but it's not going into mainline as a bogus config 
file could crash pxelinux.

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