system logs, “systemctl reboot” to reboot,try agin to boot info default mode

错误日志如下

Welcome to emerygency mode! After logging in type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or ^d to 
try again to boot info default mode.
Give root password for mainternance
(or press Control-D to continue):

由于之前使用Ceph RBD远程挂载并设置开机启动，服务器开机时候提示上面。系统自己为我们进入紧急模式，我们需要先删除/etc/fstab中的挂载点

此处根据自己实际情况修改注释

修改完成后重启