CentOS7修改預設運行層級

CentOS7修改預設運行層級

在虛擬機器新安裝了個CentOS7，圖形介面啟動太慢，想調整一下按照以前的經驗改運行層級，輸入：

vi /etc/inittab

然後發現跟之前不一樣了，在inittab設定不再生效：

# inittab is no longer used when using systemd.
#
# ADDING CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.
#
# Ctrl-Alt-Delete is handled by /usr/lib/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 view current default target, run:
# systemctl get-default
#
# To set a default target, run:
# systemctl set-default TARGET.target
#

仔細讀一下上面的提示
multi-user.target 類似與之前的runlevel 3
graphical.target 類似與之前的runlevel 5

按照上面的提示，查看當前的預設target輸入命令：

[root@localhost ~]# systemctl get-default
graphical.target
[root@localhost ~]#
當前為graphical.target

修改為命令模式multi-user.target：

[root@localhost ~]# systemctl set-default multi-user.target
rm '/etc/systemd/system/default.target'
ln -s '/usr/lib/systemd/system/multi-user.target' '/etc/systemd/system/default.target'
[root@localhost ~]#

查看一下當前，發現得到預期要求：

[root@localhost ~]# systemctl get-default
multi-user.target
[root@localhost ~]#

最後重啟發現，果然是命令模式~~