24 Jul 2011
Upgrading to Lion damages the ClamAV instillation documented here. Not only are the config files removed, but the virus database is also deleted along with the log files.
Because of the seriousness of the breakage, it is easier to simply install as though you never had ClamAV on your machine to begin with. Simply follow the instructions for Snow Leopard.
Comments
11:55 pm
Why install AV on any OS X install? There is simply no reason to.
5:18 am
If you run a mail-server it is only helpful to check for any viruses in the attachments. OS X does not have the same vulnerability that Windows that is true. But there might be users of your mail server which are still using a Windows based client to access your mail-server. That is the only reason.