RedHat 7 modify the default running level method -- rhel7 uses systemd to create a symbolic link pointing to the default running level

Today, the official version of rhel7 is installed, and the default running level is not modified in the familiar inittab. Open the inittab as follows:

[[email protected] init.d]# vi /etc/inittab # inittab is no longer used when using systemd.## ADDING CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.## Ctrl-Alt-Delete is handled by /etc/systemd/system/ctrl-alt-del.target## systemd uses 'targets' instead of runlevels. By default, there are two main targets:## multi-user.target: analogous to runlevel 3# graphical.target: analogous to runlevel 5## To set a default target, run:## ln -sf /lib/systemd/system/<target name>.target /etc/systemd/system/default.target

No familiar ID: 5: initdefault in the middle

Rhel7 uses systemd to create a symbolic link pointing to the default running level.

The modification method is as follows:
1. delete an existing Symbolic Link
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Rm/etc/systemd/system/default.tar get
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2. The default level is 3 (text mode)
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Ln-SF/lib/systemd/system/multi-user.target/etc/systemd/system/default.tar get
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Or the default level is 5 (graphic mode)
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Ln-SF/lib/systemd/system/graphical.tar get/etc/systemd/system/default.tar get
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3. Restart
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Reboot
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