When to Boot a System
Table 5-3 provides a list of system administration tasks and the corresponding boot type used to complete the task.
Table 5-3 Booting a System|
If You Are Rebooting the System After ... |
Use This Boot Type ... |
See SPARC Procedure ... |
See x86 Procedure ... |
|---|---|---|---|
|
Turning off system power due to anticipated power outage |
Turn system power back on | ||
|
Changing kernel parameters in the /etc/system file |
Reboot the system to run level 3 (multiuser mode with NFS resources shared) |
"SPARC: How to Boot a System to Run Level 3 (Multiuser State)" |
"x86: How to Boot a System to Run Level 3 (Multiuser State)" |
|
Performing file system maintenance, such as performing a backup or restoring system data |
Use Control-d from run level S to bring the system back to run level 3 |
"SPARC: How to Boot a System to Run Level S (Single-User State)" |
"x86: How to Boot a System to Run Level S (Single-User State)" |
|
Repairing a system configuration file such as /etc/system |
Interactive boot | ||
|
Changing pseudo device parameters in the /etc/system file |
Reconfiguration boot | ||
|
Adding or removing hardware from the system |
Reconfiguration boot (plus turning on system power after adding or removing hardware) | ||
|
Booting the kernel debugger (kadb) to track down a system problem |
Booting kabd |
"SPARC: How to Boot the System Using the Kernel Debugger (kadb)" | |
|
Repairing an important system file which is causing system boot failure |
Recovery boot | ||
|
Recovering from a hung system and you want to force a crash dump |
Recovery boot |
See example on "x86: How to Force a Crash Dump and Reboot the System" |
See example on "x86: How to Force a Crash Dump and Reboot the System" |
See Chapter 8, Booting a SPARC System (Tasks), or Chapter 9, Intel: Booting a System (Tasks), for examples of booting a system.
- © 2010, Oracle Corporation and/or its affiliates