This is Plan B 4th edition. Most of it is Plan 9 from Bell Labs 4th edition taken verbatim. The system has been changed and includes technology from Plan B 2nd and 3rd edition. To boot a plan b system use this in your plan9.ini: [planb] bootfile=ether0!/386/9pcb.gz nobootprompt=tcp rootspec=planb/active usrspec=main/active init=/386/bin/bns -l sysname=nautilus planb=yes