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Starting and stopping the system

Starting (rebooting) your system

Rebooting halts the system and either reboots from the bootable operating system currently on the hard disk (/stand/unix) or, if necessary, configures a new bootable operating system and reboots from the new /stand/unix. Rebooting forces a configuration of a new bootable operating system if software modifications that make a configuration necessary have been made to the system. See the description of this process in ``Building on boot''. for more information.

If a new bootable operating system is created, it is written to /stand/unix, and the system is rebooted using it.

To halt and reboot the system from the hard disk:

  1. Enter the following:
       shutdown -i6
    
    When you reboot, a console message confirms that a shutdown has started. If more than one user is on the system, a message is automatically broadcast informing users of the shutdown and directing them to log off or risk file damage. If the Unlimited User Upgrade package is installed, the system waits for the specified grace period before asking if you want to continue with the shutdown; answer y (for yes). A second grace period follows the prompt.


    NOTE: Alternatively, if your filesystem type is vxfs, you can reboot the system by pressing the <Ctrl>, <Alt>, and <Del> keys simultaneously.

    If the <Ctrl> <Alt> <Del> key sequence is used to reboot, no messages are broadcast, there is no grace period, and there are no prompts to answer; the reboot takes effect immediately.


  2. When the system comes back up, it is placed in the state defined by the initdefault entry in /etc/inittab. If this entry specifies multiuser state or networking state, you see a Console Login: prompt, or a graphical login screen (depending upon how your system is set up). You can then log in to your rebooted system.

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UnixWare 7 Release 7.1.4 - 22 April 2004