Last login: Wed Oct 20 15:50:00 on ttys000
wumiaomiao@V_MELMENG-MC0 ~ % su root
Password:
su: Sorry
wumiaomiao@V_MELMENG-MC0 ~ % sudo passwd root
Password:
wumiaomiao is not in the sudoers file. This incident will be reported.
wumiaomiao@V_MELMENG-MC0 ~ %
只需要在root用户的/etc/sudoers中填加你这个用户,赋予sudo权限,下次就可以改密码了