On Thursday 03 Sep 2015 20:11:40 thelma@sys-concept.com wrote:
> When I boot the computer I see some complain message about "jpeg" but it
> scroll too fast, couldn't read it. Is there a way to pause the boot
> process?

Configure your /etc/rc.conf temporarily to capture a log file and reboot 
before you check the output.
-- 
Regards,
Mick