In this article we will learn ‘Fix DPKG: Error: DPKG frontend lock is locked by another process’. Every time we install the software, there is an error with ‘DPKG: Error: The frontend lock of DPKG is locked by another process’. DPKG is a free operating system software at the bottom of the package management system in Debian and many derivatives. DPKG is used to install, delete, and supply information about the .deb package.
DPKG (Debian package) itself is a low level tool. APT (Advanced Package Tools), high level tools, more commonly used than DPKG because it can carry packages to long distance locations and handle complex package relationships such as dependency improvements. Frontends like aptitude (NCRS) and Synaptic (GTK +) are used for their friendly interface for apt.
Debian “DPKG” package provides DPKG programs, as well as many other programs needed for run-time operations of the packaging system, including DPKG-Deb, DPKG-Split, DPKG-Kueri, DPKG-Statoveride, DPKG-diverse, and DPKG. Trigger.
These include programs such as update and start-stop-devil options. Installation-info is used to enter programs too but then removed because it has now been developed and distributed separately. Debian “DPKG-DEV” package contains many build tools described below.
Follow the steps below to repair DPKG: Error: DPKG frontend lock is locked by another process
If you find “DPKG: Error: DPKG frontend lock is locked by another process” Error when running the procedure described above, you need to do extra steps. First, find the process ID containing the key file. You can do this using the command below.
itsmarttricks@ubuntu:~$ lsof /var/lib/dpkg/lock
Then make sure the process is not running.
itsmarttricks@ubuntu:~$ ps cax | grep PID PID TTY STAT TIME COMMAND
The above command will give you the process PID using lock files. Use this PID to kill the process.
itsmarttricks@ubuntu:~$ kill PID bash: kill: PID: arguments must be process or job IDs itsmarttricks@ubuntu:~$ kill -9 PID bash: kill: PID: arguments must be process or job IDs
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