Hi Jggimi,
Yes I could login to the OpenBSD firewall via ssh only after redirecting the console output to com0. If you don't do that as I mentioned in my starting thread those errors triggers without booting the OS.
Yesterday I did a fresh installation after referring to Ociact's information. I did not directed the console output to com0, the only changes that I did was accepting the automatic partition layout and when it prompts to reboot after the installation I did not removed the CD from the cd player.
It rebooted, then it booted from cd again and prompted for installation options. Then I selected the shell option, from shell I rebooted the machine for the second time and removed the CD. Finally it booted properly.
Thanks