Linux root failed to change password

Problem: Error Passwd:authentication token manipulation error when using ROOT to change password

Solve:

1, check whether the permissions issue,/etc/passwd/etc/shadow file is locked

LSATTR/ETC/PASSWD Lsattr/etc/shadow

File Unlock:

Chattr-i/etc/passwd chattr-i/etc/shadow

and then test it.

2. See if the root space is full

Df-h

If the root directory is full, clear the disk files as needed

3, check permissions issues, whether you do not have permission to execute

LL/ETC/PASSWD Ll/etc/shadow

Give Execute permission

chmod 755/etc/passwd/etc/shadow

If you execute the chmod command error chmod:changing permissions of '/etc/passwd ': Read-only file system

The reason is: The file system is in read-only mode

Solution: Mount-rw-o remount/

Note: Mount is a mount command

-RW is to say that the specified mount file is read/write

-O remount/means to re-mount the root.

Then re-execute the chmod command

Linux root failed to change password