Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)

Method 1
ps aux | grep -i apt
sudo kill -9 <process_id>

Method 2

sudo lsof /var/lib/dpkg/lock
sudo lsof /var/lib/apt/lists/lock
sudo lsof /var/cache/apt/archives/lock

sudo kill -9 <process_id>

sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

sudo dpkg --configure -a

sudo apt update

View another examples Add Own solution

3.67

Captain Cranium 115 points

                                    Try 'sudo apt-get update' or 'sudo apt-get upgrade'

Thank you! 6

3.67 (6 Votes)

3.5

Shubham Ugare 90 points

                                    ps aux | grep -i apt

sudo kill &lt;process_id&gt;
# Check if the process was killed by running the &lsquo;ps aux | grep -i apt&rsquo; command. If it is still running, force kill it with SIGKILL signal:

sudo kill -9 &lt;process_id&gt;
# Another, easier way would be to use the killall command. This will kill all the instances of a running program:

sudo killall apt apt-get

Thank you! 8

3.5 (8 Votes)

3.43

Hanneke 130 points

                                    sudo rm /var/lib/apt/lists/locksudo rm /var/lib/apt/lists/lock-frontend

Thank you! 7

3.43 (7 Votes)

Englishwithsafa 120 points

                                    sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

Thank you! 4

4 (4 Votes)

Tab Alleman 110 points

                                    sudo rm /var/lib/apt/lists/locksudo rm /var/lib/apt/lists/lock-frontend

Thank you! 5

3 (5 Votes)

4.25

Diala 110 points

                                    ps aux | grep -i apt

sudo kill &lt;process_id&gt;
# Check if the process was killed by running the &lsquo;ps aux | grep -i apt&rsquo; command. If it is still running, force kill it with SIGKILL signal:

sudo kill -9 &lt;process_id&gt;
# Another, easier way would be to use the killall command. This will kill all the instances of a running program:

sudo killall apt apt-get

Thank you! 4

4.25 (4 Votes)

Lars Stenberg 105 points

                                    sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

Thank you! 1

5 (1 Votes)

3.57

Arra 100 points

                                    sudo must be used before and after &amp;&amp;
Example:

sudo apt-get update &amp;&amp; sudo apt-get upgrade

Thank you! 7

3.57 (7 Votes)

SLADE 95 points

                                    sudo must be used before and after &amp;&amp;
Example:

sudo apt-get update &amp;&amp; sudo apt-get upgrade

Thank you! 1

4 (1 Votes)

Frisbetarian 75 points

                                    Try 'sudo apt-get update' or 'sudo apt-get upgrade'

Thank you! 4

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