Shulou(Shulou.com)06/03 Report--

Because in the Redhat7.x version, systemd uses the concept of target that is freer than the run level of sysvinit, the setting and switching of the run level of the system is very different from that of Redhat6.x. Here is how to set the default run level of the system and how to switch it when the system is running.

First, set the default running level of the system

Method 1:

Set the default level to 3 (command line mode)

[root@ys /] # ln-sf / lib/systemd/system/multi-user.target / etc/systemd/system/default.target

Set the default level to 5 (graphical interface mode)

[root@ys /] # ln-sf / lib/systemd/system/graphical.target / etc/systemd/system/default.target

Method 2:

Set the default level to 3 (command line mode)

[root@ys /] # systemctl set-default multi-user.target

Set the default level to 5 (graphical interface mode)

[root@ys /] # systemctl set-default graphical.target

Second, in the operation of the system, switch the running level

Method 1:

Switch level to 3 (command line mode)

[root@ys /] # systemctl isolate multi-user.target

[root@ys /] # systemctl isolate runlevel3.target

Set the default level to 3 (graphical interface mode)

[root@ys /] # systemctl isolate graphical.target

[root@ys /] # systemctl isolate runlevel5.target

Method 2:

Init [0123456]

Note: the way to view the current runlevel is

[root@ys /] # runlevel

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