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 into default mode。 give root password for maintenance (?? Control-D???)
回想了一下,最近的操作也就是修改过了fstab文件,注释了新增的那一行之后,问题立马解决了。