Question Solution Linux Apt Error: “Could not get lock /var/lib/dpkg/lock-frontend”

[nerf]

apt returns “Could not get lock /var/lib/dpkg/lock-frontend”. No other install is running. How can I safely fix this?

 

[CL4Y]

Close stuck processes, clean locks, and finish any partial dpkg state.

ps aux | egrep 'apt|dpkg' # confirm nothing legit is running
sudo rm -f /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock
sudo dpkg --configure -a
sudo apt-get -f install
sudo apt update && sudo apt upgrade -y

Avoid killing active apt/dpkg; only remove locks if no process is truly running.