On 2016-11-18 13:13, Bob Jones wrote:
I successfully installed OpenBSD 6 on a system that only has USB
console by broadly following the instructions here
http://unix.stackexchange.com/questions/292891/how-can-i-install-openbsd-using-the-serial-console-without-external-monitor-wi
When the console cable session is connected, the system boots up fine,
no problems.
When the console cable is disconnected, the system seems to hang
somewhere, and then once I re-connect to the console the boot process
continues fine.
I'm obviously unable to tell at which point the boot hangs because of
the need to press the return key a few times to get the initial
console response.
(During the install process, OpenBSD prompted whether I wanted default
console set to tty0 and I said yes).
The problem is that you've told the OS to use tty0 and when it boots
there is no tty0 unless the cable is plugged in. If tty0 doesn't exist
it's going to wait for it. There maybe be a timeout at which the OS
continues without it, but in this case it will probably never reactivate
the console unless you do it over ssh.