I am using latest ubuntu 16.04 LTS. For some days after installing system worked fine but after some days it start showing this error.
Welcome to emergency mode! After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or ^D to try again to boot into dafault mode. Press Enter for maintenance (or press control-D to continue):
But there is one way using which I can start system. On boot up I go to recovery menu then clean package and then resume the system. It works but , it is time consuming to do after every boot up. Suggest something simple and cleaner to resolve this problem.
Before going into emergency mode it gave message as : [12.320307] intel_soc_dts_thermal:request_threaded_irq ret -22
In case anyone interested in seeing log files : http://www.filehosting.org/file/details/644902/error_log.txt