I also thougt about this. Also `etherboot' uses this way using both,
the serial and screen/display simulatneously.
The only thing, we have to consider at this point, that the use of
a serial console must be configurable. First of all we have to set
the port parameters like baud rates, etc, and it must also be able
to disable the serial console, as this port can be used for
another device, like modem or mouse (I always prefer the serial
console !!).
For systems without grpahic card and perhaps even without keyboard
(special embedded pc like systems), it is perhaps also a good idea,
to disable keyboard/screen, as there may be missing BIOS support
for that (I had never seen that problem, but this may exist one day...).
With friendly regards
Christoph Plattner
Rene Mayrhofer wrote:
>
> Hi all
>
> I just stumbled over the grub mailing list archive and noticed that there was
> some talk about supporting the serial line for controlling grub. This would be
> great !
>
> The last message I read on this topic mentioned that there should be some way to
> detect if a video adapter is available. This is would be nice, but it is not
> necessary. At the moment I am working on a bootable CD that should be fully
> administerable over the serial line (additionally to the normal console) and I
> found out what syslinux does: When the serial directive is given in it's config
> file, it just writes the boot message to BOTH the console and the serial port.
> It also accepts input from BOTH sources, so there is absolutely no problem with
> deciding which one should be used. Just do both. It works very well for me.
>
> PS: If you have any questions, then please contact me directly, I am not
> subscribed to this list.
>
> Just my 2 cents,
> Rene
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