To do this run the following command line: sudo dpkg -configure -aĭuring the process, I was asked to confirm the restart of the affected services. This will kill all the instances if the running application: sudo killall apt apt-getĪfter a forced stop of the apt command, a reconfigure of the packages is required. Where 20485 is the process ID of the application that need to be killed.Įasiest way would be to use killall command. Step2 - Kill the processRun the following command line to kill the process that is running apt or apt-get command: This process is from the current command to highlight the keyword searched, in our case apt.

You can ignore the last line containing grep –color=auto. The command shows that there is a process with ID 20485 that is using the apt application.

Run the following command line to get the ID of the process that is running the apt or apt-get command. This method works in most of the cases as it is the most obvious reason: there is another process that uses the apt application. Today I was trying to upgrade my ubuntu server by running the command apt upgrade when I encountered the following apt upgradeĮ: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)Į: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using error could have many reasons, but in my case, it was because I accidentally close the terminal session, and it was in the middle of an application installation.

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