Error Message
E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 6711 (unattended-upgr)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?Deal With
Check Status
ps aux | grep unattended-upgrStop unattended Service
sudo systemctl stop unattended-upgrades.service
sudo killall dpkg
sudo killall apt apt-getCheck and Remove the Lock
This should be done with caution as it can potentially corrupt your package database.
sudo rm /var/lib/dpkg/lock-frontend
sudo rm /var/lib/dpkg/lock
sudo rm /var/cache/apt/archives/lock
sudo dpkg --configure -a
