[syslinux] Append line size limit in syslinux 3.72

[H. Peter Anvin]

H. Peter Anvin wrote:
> Dag Wieers wrote:
>> Hi,
>>
>> Is there still a known limit of 255 characters of the append line in 
>> syslinux (isolinux) from the config file ?
>>
>> A quick test showed me that when the APPEND line in the config-file is 
>> longer than 255 characters it arrives truncated in Linux.
>>
>> While typing more than 255 characters on the commandline does not cause 
>> the same issue and in Linux the kernel commandline exceeds the 255 
>> character limit without a problem.
>>
>> This is tested using RHEL4.6 anaconda's 2.4.9 (BOOT) kernel.
> 
> Ancient Linux kernels like that have 255-character limit.
> 
> Modern Linux kernels have a 2047-character limit.
> 

Wait... you're talking about RHEL4.  That must be a 2.6.9 kernel. 
Either way, only kernels after 2.6.21 support more than 256 characters, 
so I'm more than a bit confused about that.

	-hpa