Whenever I try to install steam on the Terminal, it replies:
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? What's happening? Is there a way to fix it? If it matters, I have installed Elementary OS Freya.

2 Answers 2


First try rebooting and if that does not work try running

sudo rm /var/lib/dpkg/lock
sudo dpkg --configure -a

Now try to install Steam (remember to use sudo)


This happens whenever you try to work with packages in one process (i.e. application), but some other application is already working with packages (as you can see in error message "...is another process using it?"). Maybe updates are installing while you were trying to install Steam, or Software Center was opened and something was downloading. When you encounter this, try to close all other package-managing applications, and if that doesn't help, do what Suici said.

  • Yes, it might be updates
    – Suici Doga
    Mar 12, 2016 at 13:04

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