Help with an Urgent Matter
norman.gray at glasgow.ac.uk
Wed Jul 11 19:26:58 UTC 2018
On 11 Jul 2018, at 20:08, David Johnson wrote:
> I have found a FreeBSD OS embedded in my Mac which is fully
Not really. macOS uses a lot of the FreeBSD 'userland' -- ie, the user
commands -- but the kernel is significantly different.
There is quite a close relationship between macOS and FreeBSD, though
I'm vague on the details (if anyone has any links, I'd be very
interested in them). However close it is, one cannot realistically say
'macOS is FreeBSD'!
> I followed the instructions and did the following from your website
> in terminal; shutdown -k +1 "message"
The -k option means:
-k Kick everybody off. The -k option does not actually halt
tem, but leaves the system multi-user with logins disabled
See 'man shutdown'
As it happens, I think that 'shutdown -h now' does work on macOS, but it
may not be formally supported. That is, there may well be other aspects
of a fully controlled shutdown which this will miss.
Norman Gray : https://nxg.me.uk
SUPA School of Physics and Astronomy, University of Glasgow, UK
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