When you see a prompt like "d0p0s0>_", it means you are in the "boot
monitor", the Minix bootstrapper. The boot monitor is a very simple
program capable which does not keep any volatile information (unlike Minix
itself). So, if your system is dead in the boot monitor, you can at least
safely power off.
If you want to shut down the computer while logged into Minix, you can
also issue the command "shutdown -x 'off'". This will pass the command
"off" (which shuts down your PC) to the boot monitor.
Jens de Smit
Student Computer Science | Vrije Universiteit Amsterdam
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"[In the end, people] get furious at IT that the goddamn magic isn't working"
-- Stewart Dean