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This question already has an answer here:

I am trying to install Unetbootin on Ubuntu but get the above error and this one:

E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

Can anybody tell me how to fix this so I can install Unetbootin successfully?

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marked as duplicate by Eliah Kagan, Eric Carvalho, Radu Rădeanu, Warren Hill, Jorge Castro Aug 21 '14 at 12:51

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Could you give us at least some basic info about what you are doing? For instance, did you type a command? If so, what command was it? Did you click on something? What version of ubuntu are you currently running? – Nanne Jul 16 '13 at 5:33

E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)

E: Unable to lock the administration directory (/var/lib/dpkg/)

These lines says that you are not authorized to install a package. You need root privileges to do it.

So, you must to use sudo to give permission to install the package:

sudo apt-get install unetbootin
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