Syslinux - Aug 2017 - cmenu.c32 Symbol not found luaL_checklstring

Hello everyone,

   I am trying to PXE boot my Acer Aspire G3-773G laptop. It uses UEFI, 
so I load 64bit syslinux.efi (v6.03) and it automatically loads 
ldlinux.e64. All is fine.
But when I want to use cmenu.c32 (with UI cmenu.c32 in the config file), 
the loader downloads:
   * cmenu.c32
   * libmenu.c32
   * libcom32.c32
   * libutil.c32
Then syslinux reports: "unable to load cmenu.c32: symbol not found 
luaL_checklstring".
This sysbol is defined in liblua.c32, that is present in the TFTP 
directory. The TFTP log file however does not show any attempt to load 
this library....

How to fix this???


syslinux.efi:   6.03 (EFI; 20151222)

Kind regards,
Reinier Kleipool

(Non-subscriber)

On Thu, Aug 24, 2017 at 5:00 AM, Reinier Kleipool via Syslinux
<syslinux at zytor.com> wrote:
> Hello everyone,
>
>   I am trying to PXE boot my Acer Aspire G3-773G laptop. It uses UEFI, so I
> load 64bit syslinux.efi (v6.03) and it automatically loads ldlinux.e64. All
> is fine.
> But when I want to use cmenu.c32 (with UI cmenu.c32 in the config file),
the
> loader downloads:
Why cmenu.c32 and not menu.c32 or vesamenu.c32?  iirc, cmenu.c32's
menu is hard-coded into the file and not reusing the existing config.
>   * cmenu.c32
>   * libmenu.c32
>   * libcom32.c32
>   * libutil.c32
> Then syslinux reports: "unable to load cmenu.c32: symbol not found
> luaL_checklstring".
> This sysbol is defined in liblua.c32, that is present in the TFTP
directory.
> The TFTP log file however does not show any attempt to load this
library....
>
> How to fix this???
I've never used cmenu.c32 myself.
> syslinux.efi:   6.03 (EFI; 20151222)
I'm doubting 6.04-pre1 would help in this case.
> Kind regards,
> Reinier Kleipool
-- 
-Gene

Reinier Kleipool via Syslinux <syslinux at zytor.com> writes:
> But when I want to use cmenu.c32 (with UI cmenu.c32 in the config
> file), the loader downloads:
>   * cmenu.c32
>   * libmenu.c32
>   * libcom32.c32
>   * libutil.c32
> Then syslinux reports: "unable to load cmenu.c32: symbol not found
> luaL_checklstring".
> This sysbol is defined in liblua.c32, that is present in the TFTP
> directory. The TFTP log file however does not show any attempt to load
> this library....
cmenu.c32 is a Lua library, use it from a Lua script.  See
simplemenu.lua in the Syslinux source tree for an example.
-- 
Feri

Thanks Ferenc! This is the answer. A nice menu is shown now I use 
menu.c32. I save a lua menu for later, menu.c32 works just fine for now. 
The documentation may be a little confusing on the site...

Kind regards,

Reinier Kleipool


On 28-08-17 10:11, Ferenc W?gner wrote:
> Reinier Kleipool via Syslinux <syslinux at zytor.com> writes:
>
>> But when I want to use cmenu.c32 (with UI cmenu.c32 in the config
>> file), the loader downloads:
>>    * cmenu.c32
>>    * libmenu.c32
>>    * libcom32.c32
>>    * libutil.c32
>> Then syslinux reports: "unable to load cmenu.c32: symbol not found
>> luaL_checklstring".
>> This sysbol is defined in liblua.c32, that is present in the TFTP
>> directory. The TFTP log file however does not show any attempt to load
>> this library....
> cmenu.c32 is a Lua library, use it from a Lua script.  See
> simplemenu.lua in the Syslinux source tree for an example.
-- 
OSA mail template

Can you use the .c32 's like vesa menu with UEFI?

I thought there was a subset of calls that are not permitted with UEFI
booting. (It would be nice to get some graphics back again)

On 28 Aug. 2017 6:30 pm, "Ferenc W?gner via Syslinux" <syslinux at
zytor.com>
wrote:
> Reinier Kleipool via Syslinux <syslinux at zytor.com> writes:
>
> > But when I want to use cmenu.c32 (with UI cmenu.c32 in the config
> > file), the loader downloads:
> >   * cmenu.c32
> >   * libmenu.c32
> >   * libcom32.c32
> >   * libutil.c32
> > Then syslinux reports: "unable to load cmenu.c32: symbol not
found
> > luaL_checklstring".
> > This sysbol is defined in liblua.c32, that is present in the TFTP
> > directory. The TFTP log file however does not show any attempt to load
> > this library....
>
> cmenu.c32 is a Lua library, use it from a Lua script.  See
> simplemenu.lua in the Syslinux source tree for an example.
> --
> Feri
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