Password change error

Edge2
1

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu22 service

Which version of system do you use? Please provide the version of the system here:

self build

Please describe your issue below:

passwd root

report errors：
New password: 
Retype new password: 
passwd: Authentication token manipulation error
passwd: password unchanged

help help

2

Did you try sudo passwd root ?

3

The same anomaly！
I’m trying：
#password requisite pam_deny.so

No error reported, but the password did not take effect.

4

Solved, thank you for your support！

5

Please do share your solution for others in the future :wink:

6

/etc/shadow
I don’t know how the file permissions have changed.

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