8/12/2023 0 Comments Lock error sudo apt get install![]() It is essential to have superuser privileges when installing a package with the apt command, and failure to do so can result in errors. After removing the restrictions, use sudo dpkg –configure -a to reconfigure dpkg. Manually deleting lock files is not advised, and should only be done as a last resort. If that fails, you can use the lsof command to determine which process possesses the lock on the files, kill it, and manually delete the lock files with the rm command. The ps command can be used to locate and terminate the process that is updating or installing packages. A possible solution to this error is to delay, as the system may be processing pending subtasks. This error occurs when a program, such as apt, is unable to acquire the necessary permissions to update or install package(s). The “unable to acquire the dpkg frontend lock” error occurs frequently when updating or installing packages on Ubuntu/Debian systems. ![]() This isn’t exactly the ‘unable to acquire the dpkg frontend lock’ error, but it is an error that can frustrate someone who has just started the Linux journey. If you forgot to prepend your apt install with sudo, apt will yell at you saying it couldn’t open the lock file. While installing a package using the apt command, you must have superuser privileges. This plan is named Plan 0 because it’s quite trivial and easy to overlook for a beginner. Even after giving sufficient time if the dpkg is still locked out, you can then go ahead and try rebooting the system. Give the system to process all the pending subtasks it needs to perform. Wait it out or RebootĮven before we start with various methods to get dpkg to work, the most obvious way to go about is to do nothing. Now that we understand the reason behind the error, let’s try to fix it. How to Fix “unable to acquire the dpkg frontend lock” Now that we understand why this error is thrown, we can move on to fixing it. This ‘ locking mechanism‘ exists because package updates can’t be run in parallel, they could interfere with each other. ![]() Since apt can’t own the lock now, it will give an error saying ‘ unable to acquire the dpkg frontend lock‘ or something similar. It might happen that another program was updating/installing a package and then you try to sudo apt install something while the other program still owns the lock. Only 1 program can own a lock at a given time. ![]() Any other program that tries to update or install packages has to check whether this file’s lock is available or not. Whenever a program like apt tries to update or install package(s), it first locks a particular file. ![]() Why does the “unable to acquire the dpkg frontend lock” error show up? In this article, we cover how to resolve this error so that you can continue with your important work on your Ubuntu/Debian machine. It might also look like this while using the Software Center/App Store : Could not get lock – Software Center E: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable)Į: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?.E: Could not get lock /var/lib/apt/lists/lock – open (11: Resource temporarily unavailable)Į: Unable to lock directory /var/lib/apt/lists/. ![]()
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