[syslinux] How to press F1 over a serial console?

[H. Peter Anvin]

Ferenc Wagner wrote:
> Hi,
> 
> Over a serial emulation provided by the BIOS, I get the PXELINUX boot
> prompt all right.  Now, how do I send F1 to get a help screen?  It's
> not PXELINUX specific, of course, F1 would also come helpful for
> entering the BIOS Setup program.  Its accross telnet running in an SSH
> session from an UTF-8 xterm, as it probably matters.  I would be
> grateful for any insight.

It depends on the BIOS, and frequently on the specific emulation you 
have selected in your serial emulation BIOS setup.

I believe if you're doing vt100/vt220 emulation, F1 is represented by 
the sequence "<ESC>[OP".

	-hpa