[syslinux] Syslinux fwrite support

[H. Peter Anvin]

On 05/22/16 17:31, Tal Lubko via Syslinux wrote:
> 
> Thanks a lot for your help.
> OS's log won't do the job but raw writing sectors is good enough.
> 

The thing at issue here of course is that writing to the disk is
dangerous; first of all, write support in every filesystem driver can
require a *lot* of complexity, second of all you risk serious corruption
if there are bugs in the code or in the BIOS, and third, some
filesystems can't even be written at all (e.g. ISO 9660).

Writing to a raw partition is *less* dangerous but not risk free.
Transmitting across the network, sending data to a serial port, or
adding it to the OS's initramfs (Syslinux includes sophisticated APIs
for generating an initramfs on the fly) is generally safe.

	-hpa