Reply to post: Re: All hash prompts look the same

Y2K, Windows NT4 Server and Notes. It's a 1990s Who, Me? special

Peter Gathercole Silver badge

Re: All hash prompts look the same

Was obviously a real old UNIX admin.

The official way of shutting down (to single user) a UNIX edition 6 or edition 7 system on PDP11 was slightly different, but not a lot.

From a root session it was "kill -1 1" which sent HUP to the init process that would switch the run level to single-user mode. In single user mode, there was just the shell on the console running (and just maybe init itself).

From there, you would issue several sync commands to flush any unwritten disk buffers, and then power down the system. It was all documented as the way to do it!

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