On 11/11/13 14:52, Teske, Devin wrote:
On Nov 11, 2013, at 12:44 PM, Peter Grehan wrote:
Hi Devin,
Question:
Does bhyve set kern.console irrespective of loader.conf values?
The kernel sets it based on what it determines the console to be. Bhyve
influences that by requesting a serial console. This is no different than
booting on a headless machine with a serial console.
Well, for a headless meachine, I would set console=comconsole,vidconsole
in loader.conf(5), then our Forth code slurps it in via loader.4th + support.4th
routines...
When boot is executed, I know I can see "kenv console", but hadn't realized
that there were/are a host of others that are slurped into the kernel for later
(very purposeful) fetching.
So when you say that bhyve requests a serial console... I assume now it's
setting variables... but via raw Forth? C code? loader.conf(5)? I've seen my
menu come up under bhyve, and I noticed that it only has a 5-second count-
down instead of the usual 9 -- but I'm curious how you're exporting the
variables.
I think you've misunderstood. kern.console isn't set by loader. It
reflects the state of the kernel, which decides what to do autonomously
based on a number of driver and platform-dependent things including, but
not limited to, kenv (loader variables, for instance).
-Nathan
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