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init

summary

    This subchapter looks at init, a Linux command.

    init is used to change the runlevel.

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init

    This subchapter looks at init, a Linux command.

    init is used to change the runlevel.

run levels

    Linux has run levels (sometimes written as a single word, runlevel). The non-graphic mode is run level 3. the graphic mode is run level 5. Sometimes a Linux server will only boot up to the non-graphic level. You can use this command to temporarily get the graphic interface running (run level 5).

    $ init 5

    Edit the /etc/inittab file to include id:5:initdefault: to make a permanent change.

    A chart of the Linux run levels:

RUN LEVEL	DESCRIPTION
0	System is halted
1	Single-user Mode     used for system maintenance
2	Multiuser mode withut networking     rarely used
3	Standard multiuser mode with networking active
4	not defined
5	Multiuser mode with graphics     Like standard multiuser mode with networking active plus the X Window System graphic interface
6	Reboots the system     shuts down all system services

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