n00b question regarding installation via serial console

Tim Judd tajudd at gmail.com
Thu Jun 4 15:28:58 UTC 2009

On 6/4/09, Wojciech Puchar <wojtek at wojtek.tensor.gdynia.pl> wrote:
>> Hello list,
>> Is it possible to boot into the serial console from the installation
>> CD, or must boot.flp be used as per
> make your own CD
> add file boot.config containing just one line:
> -P
> to existing, make sure you it's bootable (mkisofs -b boot/cdboot
> -no-emul-boot) and record
> refer to
> man boot.config

Sure that's enough?  ttys is still going to mark the ttyd0 line as
"off" and won't present a tty/login then.

I think it's more complicated than that.  And what if the boot process
hangs for some reason?  no console output either by your solution.

Enabling a serial console on a typical install means editing 3 files.

loader.conf needs to know the COM port speed (default 9600), and what
device to output the console.
boot.config allows the keyboard usage via serial line (the -P probing
doesn't always work, better to use -D dual)
ttys enables the ttyd0 (aka COM1) port to be used to login/use the
system.  It's default is also 9600

Honestly, I've setup a diskless boot server (via my ALIX SBC router),
and it runs the latest -RELEASE and I can launch sysinstall from the
diskless machine and just work off that.

The OP's intention may warrant a diskless server.  I threw spinrite,
memtest and freebsd all as possible options to boot off the network.

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