After installing redmine 3.4.6 on a fresh FreeBSD 12.0 jail, I realized ImageMagick was missing, then I made a ZFS snapshot and installed ImageMagick6-nox11 package. After ImageMagick6-nox11 installation Redmine was given a 404 not found error. Then I made a new snapshot and compare both . Here is the zfs diff report : https://clbin.com/xcREt