When I try to switch to another user from the command line using "su", I get an authentication failure, as shown below:
su - otheruser
Password: *****
su: Authentication failure
Yet I know that the password is correct because I can successfully log in to the desk top as the other user from the Ubuntu login screen.
Does anyone know what could be causing this problem?
2 Answers
See this page for what you should use for a rootshell: RootSudo
This page also will explain how to get a terminal as another user.
Short version: sudo -i -u <username>
There's an Ubuntu SO-based site here:
You need to be root to do "su". You can "sudo su - user" or you can "sudo su -" then do "su - user". Enter the password of the user you are now when you do the sudo. ex. "whoami"
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