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Trying to change a Ubuntu user's password, authentication token manipulation error

Fresh5 days ago
Mar 15, 202641850 views
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Problem

I'm trying to create a local user on a new Ubuntu box. I'm unable to change the password, and I keep getting the error below. The user gets added to the shadow file, but I can't get it to set a password. How can this be fixed?

Error Output

admin@theserver:~$ sudo useradd jamz
[sudo] password for admin: 
admin@theserver:~$ sudo passwd jamz
passwd: Authentication token manipulation error
ā€¦

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1 Fix

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Fix for: Trying to change a Ubuntu user's password, authentication token manipulation error

Low Risk

I ran into the "Authentication token manipulation error" after dropping into a root shell from the boot loader. Turned out the filesystem was mounted read only: fixed it and I could change the password.

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