Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
ps aux | grep -i dpkg // Kill processes which are running sudo kill -9 <pid> // Restart the accounts daemon sudo systemctl restart accounts-daemon
Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
ps aux | grep -i dpkg // Kill processes which are running sudo kill -9 <pid> // Restart the accounts daemon sudo systemctl restart accounts-daemon
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
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
sudo rm /var/lib/apt/lists/lock sudo rm /var/cache/apt/archives/lock sudo rm /var/lib/dpkg/lock*
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
$ sudo dpkg --configure -a dpkg: error: parsing file '/var/lib/dpkg/updates/0004' near line 0: newline in field name '#padding'
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