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As the title says I cannot shutdown or reboot from the GUI (when I say GUI I mean the one that loads after the startx command) after I am done. I can logout and reboot from command line but I cannot do it at once.

I have added another user, made him root and deleted pi user - if that matters - it appears the problem started after this change.

Can this be fixed?

I can post if you can tell me how or point me to where I should read so I can provide them.

Another problem I had after I created the new user was that the GUI taskbar was flashing and was unavailable for everything. After googling I fixed it by typing

sudo usermod -a -G audio <your_user>

P.S. I managed to reboot from SSH and from Ctrl+Alt+F2 but it still looks like I have a problem to fix. Please help.

Commands I used are: 

>sudo adduser newuser 
>sudo visudo (to make him root) 
>sudo deluser -remove-home pi (to delete pi/remove pi user)

Note that I went through all this to harden my SSH because I want to use my raspberry pi over the net. Hence I will have to do it again after flashing and I'm afraid I will just reproduce the same problem.

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  • How did you create the new user? Raspbian doesn't have a root login but there is a root user. It is probably going to be easier to just reflash your SD card and restart.
    – Milliways
    Sep 12, 2015 at 11:54
  • Commands I used are: >sudo adduser newuser >sudo visudo (to make him root) >sudo deluser -remove-home pi (to delete pi/remove pi user) Note that I went through all this to harden my SSH because I want to use my raspberry pi over the net. Hence I will have to do it again after flashing and I m afraid I will just reproduce the same problem.
    – Karsus
    Sep 12, 2015 at 12:26

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It is still unclear exactly what you did. visudo does not make a user root.

Did you login as newuser before deleting pi?

You need to make the user a member of many groups to actually do anything try:-

for GROUP in adm dialout cdrom sudo audio video plugdev games users netdev input spi i2c gpio; do sudo adduser newuser $GROUP; done

I fear you have broken your installation if you deleted pi before login as newuser.

While I have posted the above, I do not see that changing user will "harden my SSH". There are better ways to do that, such as setting public/private keys and disabling password login.

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  • You are right I probably broke my installation because I didn't know one should add a new user to groups. After researching I figured it out and did the following: >sudo adduser newuser >sudo visudo (to make him root) >sudo usermod -a -G adm,dialout,cdrom,sudo,audio,video,plugdev,games,users,netdev,input,indiecity newuser Then I checked that everything worked ok and I deleted user pi. Stuff continued to work fine. I know that private keys are safer for SSH hardening but I didn't want to dive into those waters yet. Anyway, fixed now that I know about user groups. Thank you for your help!
    – Karsus
    Sep 14, 2015 at 22:13

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