[syslinux] PXE max boot image size?

[H. Peter Anvin]

H. Peter Anvin wrote:
> Trey.Harris at morganstanley.com wrote:
> 
>>Ah. So, short of the ~1GB limit, it's bounded by the size of the system
>>RAM, not anything on the NIC? That was my question--most of our systems
>>have 4GB RAM or more.  Sounds like it won't be an issue, even if we tried
>>to ship an entire CD-ROM image--network bandwidth would be a problem far
>>earlier.
> 
> No other limit.  MEMDISK supports up to 4 GB (obviously, you'll have no
> memory left for the OS if you use that much.)
> 

One more thing on this subject: some TFTP servers handle sequence number 
wraparound incorrectly.  Sequence numbers wrap around every 2^16 packets 
== 32 MB.  The latest versions of PXELINUX and tftp-hpa should handle 
this correctly, but older versions might not.

	-hpa