root登录系统后，修改密码时出现"authentication token manipulation error"
This is the result of trying to work on a file system while mounted as read-only. The solution is a simple one. Before making changes to the users password mount the filesystem as read-write which allows for the necessary changes to be made.
mount -o rw,remount /
执行 mount -o rw,remount / （执行后没有任何提示）即可修改