After upgrading to the latest Mantis version, I had a problem with zip attachments being corrupted when downloaded from Mantis. Turns out his error message is added to the files:

SYSTEM WARNING: ‘finfo::finfo() [finfo.finfo]: Failed to load magic database at ‘/etc/magic’.’ in ‘/srv/sites/mantis.progi-media.com/htdocs/core/utility_api.php’ line 273

To fix the problem I had to manually configure the proper path to the magic file on the server.

First I located the magic database file through the man page for magic


# man magic

MAGIC(5)
NAME
magic – file command’s magic number file

DESCRIPTION
This manual page documents the format of the magic file as used by the file(1) command, version 4.17. The file command identifies the type of a file using, among other tests, a test for whether the file begins with a certain magic number. The file /usr/share/file/magic specifies what magic numbers are to be tested for, what message to print if a particular magic number is found, and additional information to extract from the file.

Then I added a new configuration entry to the Mantis configuration file: config_inc.php. This file is located at the root of the Mantis folder and can be edited by any text editors such as nano, pico or vi.

$g_fileinfo_magic_db_file = '/usr/share/file/magic'