Heads up on upgrading from the older 4.2 release to 4.4 or master.

[Matthew Dillon]

    Please note that when updating your system from the older 4.2 release
    to the current 4.4 release or to the current master, you need to
    build and install the world AND kernel (not just the kernel) before
    rebooting.

    If you just installkernel and reboot with the old world you will get
    the old boot loader which will implode on the new kernel.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>