centos 7修改啟動級别修改小記

安裝GNOME桌面後想設定預設啟動桌面環境，結果發現centos 7的/etc/inittab檔案和centos 6不一樣了，特記錄centos 7設定開機啟動級别方法。

cat /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 /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           

通過該檔案可以看出centos 7 用targets代替了啟動級别的設定

multi-user.target類似于 級别3

graphical.target類似于 級别5

systemctl get-default           

systemctl set-default multi-user.target           

systemctl set-default graphical.target