[syslinux] Maximum line length of APPEND option in PXELINUX

[H. Peter Anvin]

Jim Cromie wrote:
 >
> perhaps its worth pointing out that 255 is a kernel limit - unless 
> Documentation/i386/boot.txt
> is oo-date:
> 
> **** THE KERNEL COMMAND LINE
> 
> The kernel command line is a null-terminated string up to 255
> characters long, plus the final null.
> 
> so any error msg from pxelinux is reflecting the fact that you wont 
> succeed anyway.
> 

Indeed it is.  I seem to remember it being an explicit request on this 
mailing list that it didn't fail silently like it had been.

Now, with bootproto 2.02+ it should be possible to extend the limit in 
the kernel.  For syslinux 3.xx it should be pretty easy to extend the 
limit in syslinux to match; for previous versions of syslinux it would 
be much harder.

	-hpa