The error is kind of obvious.. read it.. process it...
Code:
filesystem type 8 not known.. assuming ffs
warning: /dev/console error 22
exec /sbin/init: error 22
exec /sbin/oinit: error 22
exec /sbin/init.bak: error 22
init: not found
panic: no init
Stopped at Debugger+0x4: leave
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb>
Your root file system is... corrupt.. or.. empty.. it can't find important system files.
Take this as an opportunity to install 4.4, a fresh installation is always fun.