LinuxQuestions.org - [SOLVED] Lost admin password question

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Quote:

Originally Posted by yancek (Post 5666007)

On default Ubuntu 16.04 and 14.04 versions I have installed, logging in as guest, no commands prefixed with sudo do anything nor do commands such as su user1 or su - user1 when user1 has root privileges. They all result in 'operation not permitted' messages. Ctrl+Alt+F2 does allow login to the account with sudo privileges.

Sorry, When you said "guest" I was thinking of a normal user named "guest" (which does exist on both of my computers). I didn't realize that you were talking about the default "Guest Session" which is a "kiosk" mode.
What I said applies to a normal non-administrative account that you have created. What you are saying applies to the "Guest Session" listed on the Log In screen. So we are talking about 2 different things.
Sorry for the confusion.

I saved what I needed on a thumb drive and did a fresh install of 16.04 . problem solved. it isn't obvious how to mark this as "solved"

Quote:

Originally Posted by seaguy (Post 5666122)

I saved what I needed on a thumb drive and did a fresh install of 16.04 . problem solved. it isn't obvious how to mark this as "solved"

See "Thread Tools" at the top of the thread.

Quote:

Thanksfor clarifying, makes sense with a created user 'guest'. The OP referred to 'guest' and I assumed he was referring to the default as he didn't seem to understand adding a user

I installed 16.04. problem solved.thanks folks!