topic Re: System shutdown commands in Operating System - HP-UX

System shutdown commands

Diadina Cotte — Thu, 06 Jun 2002 15:05:20 GMT

I have little knowledge on HP-UX.

To shutdown the system I have to type #shutdown -r ?????????
or this is the command for reboot?

If I reboot what are the commands to restart as multi-user???

thanks

Re: System shutdown commands

Justo Exposito — Thu, 06 Jun 2002 15:07:51 GMT

Hi Diadina,

To shutdown the system you can do:

# shutdown -h now

as root user and in the / directory.

Regards,

Justo.

Re: System shutdown commands

Rodney Hills — Thu, 06 Jun 2002 15:08:42 GMT

Enter "shutdown -h -y 0"

The -h option is for halt, -y is to answer yes to questions and 0 is how long to wait to start shutdown process.

Their is a "man" page on the syntax
man 1m shutdown

-- Rod Hills

Re: System shutdown commands

Pete Randall — Thu, 06 Jun 2002 15:09:26 GMT

The shutdown command initiates an orderly shutdown, going through all the shutdown scripts to terminate process normally. The reboot command causes an immediate shutdown.
Shutdown is the preferred method.

Pete

Re: System shutdown commands

A. Clay Stephenson — Thu, 06 Jun 2002 15:09:28 GMT

To shutdown the system:
shutdown -h -y 0

To shutdown and reboot in the normal run state befined in /etc/inittab:
shutdown -r -y 0

Man 1m shutdown for details.

Re: System shutdown commands

Klaus Crusius — Thu, 06 Jun 2002 15:09:50 GMT

Hi,

"shutdown -h 60" will shut down and halt after a grace period of 60 seconds.

"shutdown -r 0" will shutdown and reboot immediately.

The initial state (S for single user, 3 for multi user) is in /etc/inittab.

Regards, Klaus

Re: System shutdown commands

Helen French — Thu, 06 Jun 2002 15:12:09 GMT

Some points:

1) Normal and safe shutdown command:

# shutdown -h -y 0 (h-halt, y-answer yes, 0-in 0 seconds)

2) Normal and safe reboot:

# shutdown -y -r 0 (r-reboot)

3) Immediate and unsafe reboot:

# reboot -r (r-reboot, use -h for halt)

4) Just start your system and do not interrupt, the system will start in multi user mode unless there is some starup/configuration issue.

Re: System shutdown commands

Nick Wickens — Thu, 06 Jun 2002 15:13:27 GMT

Just to add to Justos reply - "shutdown -r 0" will bring the system down and backup to multiple user mode.

shutdown on its own takes you down to single user mode from which the command "init 3" takes you back to run level 3 (you can check your current run level with the command "who -r").

If your machine (assuming its a D or K class or similar) is not set to autoboot it may halt on the way up and ask you to select a boot path. If this happens just enter "bo pri" and it will boot from the primary boot disk.

Re: System shutdown commands

Pete Randall — Thu, 06 Jun 2002 15:14:37 GMT

Sorry, Diadina, I mis-read your question. As the others have said, shutdown -h will halt the system while shutdown -r will reboot. Depending on your default init level in /etc/initab (i.e. 3), the system should come back up in multi-user mode.

Pete

Re: System shutdown commands

Darrell Allen — Thu, 06 Jun 2002 15:16:11 GMT

Hi,

The first thing to do is "man 1m shutdown". Yes, "shutdown -r" reboots the system. There is a reboot command but it does not perform a graceful shutdown and reboot. That is, reboot does not run the rc (run control) scripts that will properly shutdown your applications. shutdown does run them.

Rebooting (or cold booting) will bring up the system to the run level specified in /etc/inittab on the initdefault line which typically looks like:
init:3:initdefault:

Also "man init" and "man rc" for more info.

Darrell