You can spawn a login prompt on com0 through /etc/ttys and avoid changing boot.conf. Enable tty00 in /etc/ttys.
That’s the best dual support you’ll get. > On Mar 22, 2026, at 3:48 PM, Stuart Henderson <[email protected]> > wrote: > > On 2026-03-22, Andrew Daugherity <[email protected]> wrote: >>> I use >>> >>> ~ $ cat /etc/boot.conf >>> stty com0 115200 >>> set tty com0 >>> ~ $ >> >> You can configure a serial console in boot.conf, and switch back to >> the default local console by holding the Ctrl during bootup to skip >> loading the conf file (on i386 & amd64 at least, not sure about other >> arches). From boot(8): >> >> boot.conf processing can be skipped, and the automatic boot >> cancelled, by holding down either Control key as boot starts. > > You've got to be very lucky with timing on some machines. > > > -- > Please keep replies on the mailing list. >
