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System Administration Guide: Basic Administration
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Document Information


1.  Oracle Solaris Management Tools (Road Map)

2.  Working With the Solaris Management Console (Tasks)

3.  Working With the Oracle Java Web Console (Tasks)

4.  Managing User Accounts and Groups (Overview)

5.  Managing User Accounts and Groups (Tasks)

6.  Managing Client-Server Support (Overview)

7.  Managing Diskless Clients (Tasks)

8.  Introduction to Shutting Down and Booting a System

What's New in Shutting Down and Booting a System

Oracle Solaris Auto Registration Introduced

Automatic Boot Archive Recovery

SPARC Support for Install-Time Updates

Two-Terabyte Disk Support for Installing and Booting Oracle Solaris 10

Oracle Solaris ZFS Boot Support

x86: findroot Command

Support for Specifying Platform by Using bootadm Command

Redesign of SPARC Bootstrap Process

x86: Support for Using Power Button to Initiate System Shutdown

Where to Find Shut Down and Boot Tasks

Shut Down and Boot Terminology

Guidelines for Shutting Down a System

Guidelines for Booting a System

When to Shut Down a System

When to Boot a System

9.  Shutting Down and Booting a System (Overview)

10.  Shutting Down a System (Tasks)

11.  Modifying Oracle Solaris Boot Behavior (Tasks)

12.  Booting an Oracle Solaris System (Tasks)

13.  Managing the Oracle Solaris Boot Archives (Tasks)

14.  Troubleshooting Booting an Oracle Solaris System (Tasks)

15.  x86: GRUB Based Booting (Reference)

16.  x86: Booting a System That Does Not Implement GRUB (Tasks)

17.  Working With the Oracle Solaris Auto Registration regadm Command (Tasks)

18.  Managing Services (Overview)

19.  Managing Services (Tasks)

20.  Managing Software (Overview)

21.  Managing Software With Oracle Solaris System Administration Tools (Tasks)

22.  Managing Software by Using Oracle Solaris Package Commands (Tasks)

23.  Managing Patches

A.  SMF Services


When to Shut Down a System

The following table lists system administration tasks and the type of shutdown method that is required to initiate the task.

Table 8-1 Shutting Down a System

Reason for System Shutdown
Appropriate Run Level
For More Information
To turn off system power due to anticipated power outage.
Run level 0, where it is safe to turn off power
To change kernel parameters in the /etc/system file.
Run level 6 (reboot the system)
To perform file system maintenance, such as backing up or restoring system data.
Run level S (single-user level)
To repair a system configuration file such as /etc/system.
To add or remove hardware from the system.
Reconfiguration boot (also to turn off power when adding or removing hardware)
To repair an important system file that is causing system boot failure.
To boot the kernel debugger (kmdb) to track down a system problem.
Run level 0, if possible
To recover from a hung system and force a crash dump.
Reboot the system by using the kernel debugger (kmdb), if the debugger can't be loaded at runtime.
Run level 6 (reboot the system)

For examples of shutting down a server or a stand-alone system, see Chapter 10, Shutting Down a System (Tasks).