UBUNTU6.06 LOCK FRONTEND code example
Example 1: E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
sudo kill -9 PID
sudo rm /var/lib/dpkg/lock-frontend
sudo apt update
Example 2: E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
ps aux | grep -i apt