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I've kicked myself out of the wheel group by running usermod -G without -a (add). Now, if I change to root by su and do usermod -aG wheel myuser I get no output, as expected. Likewise, groups myuser outputs: "myuser : myuser wheel ...". However, after relogging as myuser and just typing groups gives me all other groups, but wheel!

  1. I googled a lot now and found, that wheel is the admin group of some systems. Which? Is fedora such a sys?
  2. How do I get the sudo rights back for my fedora user?

the sudoers file has (albeit others) the entries: root ALL=(ALL) ALL and the same with %wheel

To be more precise: I found a million commands adding users to various groups etc, but none worked for me. Since i do not understand the fact, that I do #su -c "usermod -aG wheel myuser" and logged in to my user I still get no wheel group after typing groups, I do not know how these things work or what is going on!

and Yeah, grep wheel /etc/group gives wheel:x:10:myuser

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    Not sure if you're using graphical interface. But keep in mind that all group changes are applied only after logout and login (or in completely new session). Closing / opening terminal window in existing X session doesn't work. – rush Nov 10 '16 at 21:40
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    As root, what does groups myuser show? It's not absolutely clear from your writeup that you have logged out and in as myuser after you added myuser back to wheel. – MikeA Nov 10 '16 at 23:44
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Try rebooting. It looks like you're definitely in the wheel group. It's likely that you're just not fully logging out; shutting down will remove any doubt that you have logged out.

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you can also doing it with the following command: gpasswd -a <username> wheel you should received something like: Adding user to group wheel

To see the user groups you can use: groups <username> ; getent passwd <username>

  • getent group <name> shows the group with name <name>, not the groups that a user called <name> belongs to. To see which groups a user belongs to, use groups <name> instead. – jayhendren Nov 11 '16 at 17:10
  • No needs to vote Negatively my answer ... just trying to help here – Orsius Nov 11 '16 at 17:23

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