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# systemctl rescue
Broadcast message from root@tecmint on pts/0(Wed2015-04-2911:31:18 IST):
The system is going down to rescue mode NOW!
# systemctl emergency
Welcome to emergency mode!After logging in, type "journalctl -xb" to view
system logs,"systemctl reboot" to reboot,"systemctl default" to try again
to boot intodefault mode.
# systemctl get-default
multi-user.target
# systemctl isolate runlevel5.target
或
# systemctl isolate graphical.target
# systemctl isolate runlevel3.target
或
# systemctl isolate multiuser.target
# systemctl set-default runlevel3.target
# systemctl set-default runlevel5.target
# systemctl reboot
# systemctl halt
# systemctl suspend
# systemctl hibernate
# systemctl hybrid-sleep
对于不知运行等级为何物的人,说明如下。
Runlevel 0 : 关闭系统
Runlevel 1 : 救援?维护模式
Runlevel 3 : 多用户,无图形系统
Runlevel 4 : 多用户,无图形系统
Runlevel 5 : 多用户,图形化系统
Runlevel 6 : 关闭并重启机器
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