UBUNTU 恢复模式修改密码

今天忘了ubuntu的密码，在恢复模式中修改密码时出现

Enter new UNIX password:Retype new UNIX password:passwd: Authentication token manipulation errorpasswd: password unchanged

上网查了下，找到以下解决方法

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 /

Now try to change the users passwords again.

root@u13-04:~# passwd nyuserEnter new UNIX password:Retype new UNIX password:passwd: password updated successfully

转载连接：http://linhost.info/2013/08/passwd-authentication-token-manipulation-error-ubuntu/