Shutdown or Halt 2

[tmitch]

Everyone,

I need to power off a SCO system. Which is the desired method, using Halt or Shutdown? What is the difference?

Thanks
Tim

 

[motoslide]

I've never heard of "halt", but this is generally a clean way to shutdown:

# shutdown -g0 -y -i0

If you wish to shutdown and reboot automatically, change that last argument to " -i6 ".

My guess is that "halt" won't go through all the same steps to stop various processes. I remember "haltsys" from the Xenix days, but I'm dating myself.

"Proof that there is intelligent life in Oregon. Well, Life anyway.

 

[PHV]

Which flavor of SCO is supposed to have an halt command ?

 

[sha2169]

5.0.x has haltsys I've never heard of halt. Haltsys just powers off.

 

[stankow]

Exact name is haltsys. It is front-end procedure to uadmin command, which, according man ADM uadmin "is not for general use". You can see

# vi /etc/haltsys

Shutdown is front-end procedure to /etc/init, primarily init 0. Most concern is to inform users for near end of operation of server. Idea is to start shutdown a time before (hours, even morning) and shutdown will remind users more and more frequently until real stop.

You can see
# vi /etc/shutdown
I do not mention of course about man shutdown, hope this help

If you are absolutely sure you will not harm the processes
of users you can issue haltsys or reboot
As I try many times, it is safety. And much faster than shutdown. If not sure can recommend fastest form:
# shutdown -g0 -y
Immediate shutdown (0 minutes gracetime), 'Y' to all questions of shutdown "are sure ? etc"

 

[tmitch]

Thanks everyone. Another of our UNIX systems (not a SCO box) runs a command called halt, which brings the system to a halted state. I was able to use the shutdown command, which worked fine.

Thanks
Tim

 

[PHV]

In the SCO box you may simply use this:
init 0

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[kangaroojack]

In addition of the PHV's reply, you can use:
# init 6
(reboot of the server)