In case you have other methods that help solve this error, do not hesitate to share it with us.Generally speaking for killing a process, there's no safer way to kill a process than with a regular kill (SIGTERM). Terminating these processes or removing the lock file can help solve this problem. This is the lock issue that prevents other processes from executing these installation commands. We have provided two methods to deal with a rather common problem faced by many users on Ubuntu and similar distros when they run apt or apt-get. Sudo rm /var/cache/apt/archives/lock sudo rm /var/lib/dpkg/lock Conclusion You may also have to delete the lock file in the cache directory by running the commands: You can now remove the lock file with the command: Go ahead and run the kill command below : If one of these commands returns a result, it will display the process id that owns the lock file. The output might look like the following : Lsof /var/lib/dpkg/lock lsof /var/lib/apt/lists/lock lsof /var/cache/apt/archives/lock In order to identify the process that owns the lock file, we will use the command lsof as shown below : This is because it is not good practice to remove the lock file without terminating the program that’s holding the lock first, since this could interrupt an ongoing installation or cause corruption. Since the lock files are still around, we should first make sure no other process is using it before removing it. In case you had no other processes running apt or apt-get commands in your current session, then the problem might be caused by the lock file that was created at some time in the past due for instance to apt processes not terminated properly. Sudo killall apt apt-get 2 – Remove the lock file In your case, just plug in the process id that you obtained above.Īnother alternative would be to kill all instances of the programs that are running apt or apt-get using killall: We will now kill this process in order to release the lock using the sudo command below: The id of the process which invokes apt or apt-get is displayed above. To kill the processes that are using the apt tool, run the command below: manipulating the package database, the package database will become inconsistent or in other words corrupted. Killing a dpkg process however might not be a good idea, since if dpkg is currently active. Read : How to install and uninstall applications on Ubuntu A Beginner’s guide It won’t actually harm to kill an apt or aptitude process unless it is currently performing a package installation. Some applications like Synaptic Package Manager or Ubuntu Software Center are using this package management utility. Since this is a locking situation, it could be that the aptor apt-get commands are being used by some other processes preventing therefore other programs from using them. ![]() This error can occur due to several reasons. 1 – Identify and kill all apt or apt-get related processes In this article we will shall provide some effective methods to get rid of this kind of errors. ![]() Other users might encounter similar ones like : ![]() Sometimes when users try to install an application by executing the usual apt command on Ubuntu, they get the following error:Įrror: Could not get lock /var/lib/dpkg/lock-frontend
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