clamav freshclam did not working

Question

sudo freshclam

output:

ERROR: /var/log/clamav/freshclam.log is locked by another process
ERROR: Problem with internal logger (UpdateLogFile = 
/var/log/clamav/freshclam.log).
ERROR: initialize: libfreshclam init failed.
ERROR: Initialization error!

Solution

You're getting this error because the clamav-freshclam service is running in the background.

1. Stop it by typing sudo systemctl stop clamav-freshclam.service in a terminal.
2. Do the manual update afterwards by typing sudo freshclam.
3. Stop clamav-freshclam from starting automatically on system startup by executing sudo dpkg-reconfigure clamav-freshclam and configuring it for manual updates only, in the corresponding question.

By configuring clamav-freshclam this way, you will be able to select an update server that's closer to you so that it works faster and you will also be able to stop freshclam from giving an error concerning the clamd.conf file everytime it updates clamav, by disabling the clamd daemon notification.