Syslinux - Nov 2014 - pxelinux 6.03 lua module not loading syslinux.c32 dmi.c32 etc

I'm running pxelinux configured to use the path /bios on the tftp server for
all the comboot files.

The problem is dmi,syslinux,vesa etc modules are not being loaded in lua. 
Syslinux.version() returns not found in global index as does dmi.supported()
For k,v in pairs(package.loaded) do print (k,v) end; shows that these modules
that are normally loaded by lua are not loading.

I got an idea to configure my syslinux pxe setup to support EFI32/64/legacy from
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=720589 That's what
clonezilla server is doing too.

Config
label luabios
  MENU LABEL Upgrade your BIOS!
# path /bios makes no difference
  com32 lua.c32
  append /flash/bios/biosupdate.lua

lua.c32 /liblua.c32 isn't trying to list the directory for supported modules
is it?
(not supported over tftp of course).  I can try again with a linux tftp server
in debug mode, but from what I'm seeing from the tftp logs there is no
attempt to load syslinux.c32/dmi.c32, but they do load after I type the
require("syslinux") option.

May be related:
http://www.zytor.com/pipermail/syslinux/2014-June/022170.html
My print(package.cpath)
/bios/?.c32;/bios/?/init.c32;bios/?.c32;bios/?.c32;./?.c32

And I think I found the solution half-way through this email so I thought I
would share anyway.
The demos on the syslinux wiki don't reference this

syslinux-6.03/com32/lua/doc/syslinux.asc
   23 Modules must be explicitly loaded into the namespace
   24 before use, for example:
   25 ......................................................
   26 syslinux = require ("syslinux")
   27 ......................................................

Problem solved.

Cheers,

Luke

Luke Ledgerd <luke.ledgerd at niteco.se> writes:
> The problem is dmi,syslinux,vesa etc modules are not being loaded in lua. 
> [...]
> The demos on the syslinux wiki don't reference this
>
> syslinux-6.03/com32/lua/doc/syslinux.asc
>    23 Modules must be explicitly loaded into the namespace
>    24 before use, for example:
>    25 ......................................................
>    26 syslinux = require ("syslinux")
>    27 ......................................................
>
> Problem solved.
Yes, http://www.syslinux.org/wiki/index.php/Lua.c32 is rather outdated.
Syslinux.asc is a much better source, but still not precise in 6.03.  I
went through it recently, but my changes over 6.03 are not pulled yet.
So the version at
https://github.com/wferi/syslinux/blob/pub/com32/lua/doc/syslinux.asc is
not directly usable either, because it documents unreleased changes.
-- 
Regards,
Feri.