Ubuntu could not open lock file lock-frontend July 8, 2019 16 32 64 128 Ubuntu could not open lock file /var/lib/dpkg/lock-frontend Could not open lock file ubuntu Could not open lock file /var/lib/dpkg/lock Could not open lock file /var/lib/dpkg/lock-frontend - open (13 permission denied) E could not open lock file /var/lib/apt/lists/lock - open (13 permission denied)
