During the install there are two hidden console screens that can be used for debugging. The screen you normally see during installation can be reached by pressing the ALT-F1 key combination.
After IPCop is installed on your hard drive, some late boot messages will appear if you press ALT-F12. If IPCop does not start up correctly, you may have a hardware error, so check this screen.
During the first part of the install, until the full IPCop file system is built, the commands available at this prompt are extremely limited. Type
for a list of shell built-in commands, and
# ls /bin
for a list of individual commands.