Question

191

Authentication token manipulation error

rated 0 times [ 191] [ 0] / answers: 1 / hits: 411524 / 1 Year ago, wed, february 8, 2023, 2:05:48

I forgot my Ubuntu password so I booted into recovery and dropped into a root shell prompt and this is what happened:

root@username-PC:~# passwd username

Enter new UNIX password:

Retype new UNIX password:

passwd: Authentication token manipulation error

passwd: password unchanged

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cretanol

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1 Year ago

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answered 1 Year ago oileweaty · Accepted Answer

Also make sure you are mounting the file system read/write.

After immediately selecting 'Drop into root shell prompt' I found the filesystem was mounted read only, which prevents resetting the password.

Choosing the option to remount / as read/write and going back into the root shell prompt enabled the password change.

The command to run prior to changing the password is: mount -rw -o remount /