[syslinux] special meaning of '--' in pxelinux.cfg

[Shao Miller]

Jodok Ole Muellers wrote:
>
> Hello,
>
> I often see the double dash -- in the append line in isolinux/syslinux 
> configurations
> I only know this as "disable further option processing" e.g. in bash.
>
> What is the function of the -- ?
>

No idea.  Triple-hyphen is for Multiboot (syslinux/doc/mboot.txt).

> I don't see any difference if I use it don't use it.
>
> E.g here :
>
> append  vga=normal initrd=/install.amd/initrd.gz -- quiet
> append vga=normal initrd=debian-installer/amd64/initrd.gz -- 
> console=ttyS0,9600n8 quiet
>

In these two examples, the options before the double-hyphen are more for 
the boot-loader and the options afterwards more for the kernel.  Perhaps 
these double-hyphens serve as a visual aid to distinguish these?

- Shao Miller