ubuntu安装在VM虚拟机中，原来samba是好的，win可以正常访问ubuntu，但是不知道动了什么，samba用不了了。重新启动出现如下错误：
#sudo /etc/init.d/samba restart
[....] Restarting nmbd (via systemctl): nmbd.serviceJob for nmbd.service failed because the control process exited with error code. See "systemctl status nmbd.service" and "journalctl -xe" for details.
failed!

查看具体错误信息

查看 /var/log/samba/log.nmbd* 的内容

➜ samba journalctl --no-pager -u nmbd.service
Hint: You are currently not seeing messages from other users and the system.
Users in the 'systemd-journal' group can see all messages. Pass -q to
turn off this notice.
No journal files were opened due to insufficient permissions.

➜ samba sudo systemctl status smbd.service
[sudo] password for sampson:
● smbd.service - LSB: start Samba SMB/CIFS daemon (smbd)
Loaded: loaded (/etc/init.d/smbd; bad; vendor preset: enabled)
Active: failed (Result: exit-code) since 二 2017-02-14 17:32:03 CST; 15h ago
Docs: man:systemd-sysv-generator(8)

2月 14 17:32:03 ubuntu systemd[1]: Starting LSB: start Samba SMB/CIFS daemon (smbd)...
2月 14 17:32:03 ubuntu smbd[7776]: * Starting SMB/CIFS daemon smbd
2月 14 17:32:03 ubuntu smbd[7776]: ...fail!
2月 14 17:32:03 ubuntu systemd[1]: smbd.service: Control process exited, code=exited status=1
2月 14 17:32:03 ubuntu systemd[1]: Failed to start LSB: start Samba SMB/CIFS daemon (smbd).
2月 14 17:32:03 ubuntu systemd[1]: smbd.service: Unit entered failed state.
2月 14 17:32:03 ubuntu systemd[1]: smbd.service: Failed with result 'exit-code'.