When to Boot a System
The table below provides a list of system administration tasks and the corresponding boot type used to complete the task.
Table 7-3 Booting a System|
If You Are Rebooting the System After ... |
Use This Boot Type ... |
See SPARC Procedure ... |
See IA 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)" | |
|
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)" |
"IA: How to Boot a System to Run Level S (Single-User State)" |
|
Repairing a system configuration file such as /etc/system |
Interactive 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 With 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 "IA: How to Force a Crash Dump and Reboot the System" |
See example on "IA: How to Force a Crash Dump and Reboot the System" |
See Chapter 10, SPARC: Booting a System (Tasks) or Chapter 11, IA: Booting a System (Tasks) for examples of booting a system.
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