After fresh install of clamav getting errors?

Question

root@dc1:~# freshclam
ERROR: /var/log/clamav/freshclam.log is locked by another process
ERROR: Problem with internal logger (UpdateLogFile = /var/log/clamav/freshclam.log).

Answer 1

Only one running instance of freshclam is allowed at the same time[1]. You'll see that sudo systemctl status clamav-freshclam.service reveals that the instance has been started by the init manager systemd which should be the default after you install freshclam. This is good because freshclam will be started regularily.

If you want to start it manually run sudo systemctl stop clamav-freshclam and repeat the above command.

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[1] It might be possible to get another instance running using different prefixes for installation, configuration and log files.