the rompe blog

For the search engines: If you just upgraded your Debian Sid installation including clamav and amavisd-new, and now your virus scan doesn't work anymore and instead logs messages like the following:

(30235-03) Clam Antivirus-clamd FAILED - unknown status: 
  /var/lib/amavis/amavis-.../parts: Can't access the file ERROR
(30235-03) WARN: all primary virus scanners failed, considering backups

...then you can fix it with this simple command:

adduser clamav amavis

This adds the user "clamav" (which is now the default user that clamav sets it's effective UID to) to the group "amavis" so that the temporary files generated by amavis are readable for the scanner.