[syslinux] [RFC][PATCH] Gfxboot COMBOOT module

[a178235]

Sebastian Herbszt wrote:
> H. Peter Anvin wrote:
>> Sebastian Herbszt wrote:
>>> 
>>> If i don't mistake the original gfxboot patch did only implement gfxboot for
>>> syslinux and isolinux. The gfxboot COMBOOT module does work with syslinux,
>>> isolinux and extlinux. The cb_fopen callback from gfxboot core does expect file
>>> length in ecx. I did assume pxelinux can not return the file length on file open, tho
>>> i did not verify it.
>>> 
>> 
>> PXELINUX will return that information if it gets it (i.e. if using TFTP
>> and the TFTP server support tsize.)  This used to be required, but
>> gPXELINUX obviously can't handle those restrictions.
> 
> Then the module should work as long as pxelinux does return the file size.
> The cb_fopen callback should then check for size -1 and fail if size is not
> available.


I hope that the work done on GFXBoot comes to fruition. Some of the previous posted comments seemed negative and I hope that it doesn’t discourage those involved from completing the module. I think that it would be very beneficial as PXELINUX does not have this ability and ISOLINUX does.