[syslinux] strange problem with pxelinux - Config file size limit?

[Jim Wright]

I've also found what appears to be a limit in pxelinux for the number
of labels.  It seems to be higher than what you have though.  I've
worked around it be commenting out things.  My setup is working, and
the only thing you mention which I don't have is a kbdmap statement.
But the error messages you mention sound like what I encountered when
I had a few more label statements in the config file.


% grep -i ^label /tftpboot/pxelinux.cfg/default | wc -l
     59
% grep -i ^#label /tftpboot/pxelinux.cfg/default | wc -l
     10
% wc -c /tftpboot/pxelinux.cfg/default 
   9935 default
% grep -i ^f default | wc -l
     10


On Mon, 21 Oct 2002, Josef Siemes wrote:

> Hi,
> 
> I have some strange problem with pxelinux. I have a quite big config file (>8K), with much labels
> (29), long append's and some texts on the F-Keys (F1-F5). This works as expected, pxelinux
> loads all labels without a peep.
> 
> Now I added 'kbdmap kbd-de' to this config file - and I get strange errors all over. pxelinux
> reports several times 'Unknown keyword in config file.' and finally 'Missing parameter in config file.'.
> It seems to work with this, though, since the keyboard remap happened, and also the F-Keys
> report the desired texts, also I can boot the client as before. If I comment out this kbdmap-line the error stays there - still the 'Unknown keyword'! If I delete the kbdmap-line or if I comment 
> out all the F-Statements it works again. 
> 
> My ideas:
> - pxelinux has some limit for the config file
> - kbdmap and F-Statements don't do well
> - kbdmap redefined '#' - so pxelinux can't read the config file any more (is the config file also
> processed by kbdmap?)
> - too many labels
> - some bug in pxelinux / the pxe stack / the network card that messes up memory
> - ...
> 
> Any other ideas?
> 
> I tried this with pxelinux 1.76. I can also post the config file, the F-Files and the kbdmap,
> but just wanted to make sure this has to do with it.
> 
> Regards,
> 
> Josef
> 
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Jim Wright, Senior Engineer
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