PLDWWW: Docs/man/Changing runlevels

[grizz]

Author: grizz   Date: Mon Oct 20 14:03:11 2008 GMT
Module: PLDWWW   URL: http://pld-linux.org/Docs/man/Changing_runlevels
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---- Page affected: Docs/man/Changing runlevels

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PLD system can be run in several runlevels:

|| Runlevel 1 || Single user mode. Used by administrator for rescue/emergency/system maintenance reasons. ||
|| Runlevel 2 || Multiuser level, but without Network File System ||
|| Runlevel 3 || Normal multiuser level. This is most commonly used runlevel.||
|| Runlevel 5 || Normal multiuser level with X Window environment started by default. This is popular choice for workstations.||
|| Single || Single user mode - used in emergency situations. It runs less services than runlevel 1.||

There are two more runlevels: these are '''Runlevel 0''' and '''Runlevel 6'''. First one is used to bring all subsystems/processes down before system halt, second is used to accomplish similar task before system reboot.

System boots up in default runlevel that is defined in '''/etc/inittab''' which is usually 3 or 5. Current runlevel can be changed with '''telinit''' command. For example, if system is running level 3, issuing telinit 2 brings it to level 2 (as a consequence, NFS subsystems will be stopped). 

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