[syslinux] change SERIAL baudrate as-needed?

[Steve Rikli]

On Sun, Apr 26, 2015 at 08:36:31AM -0400, Gene Cumm via Syslinux wrote:
> On Sun, Apr 26, 2015 at 12:41 AM, Ady via Syslinux <syslinux at zytor.com> wrote:
> 
> > Hmm... In "doc/syslinux.txt" (as of v.6.03, line #473), the
> > documentation for the SERIAL directive states:
> >
> >         This option is "sticky" and is not automatically reset when
> >         loading a new configuration file with the CONFIG command.
> >
> > If the SERIAL *parameters* can indeed be changed by loading a new
> > configuration file by means of the CONFIG directive, then the
> > documentation (doc/, man/, txt/, wiki) for the SERIAL directive might
> > need some clarification / improvement.
> >
> > Would someone care to comment / clarify / explain here?
> 
> 1) Unlike most other directives, SERIAL is not reset to the default
> when loading a new CONFIG
> 
> 2) You're still free to change it though I would feel it's quite rare
> to find a circumstance for that as it'd require the other side to also
> change.

As OP, different pools of systems running at different console speeds
by necessity, is my application.

Sounds like this may be a workable solution.  I was envisioning having
to chain a separate pxelinux.0 kernel with new SERIAL parameters to
deal with the different speeds.  This sounds somewhat more tidy.

Thanks,
sr.