On the Mongo DB site, there will only be instruction for red hat, and if you just simply follow the instruction, obviously it won’t work.

since the instruction is relying on the variable $releaseserver to determine which of your OS level.

for Fedora it returns 24 if you are running Fedora 24, but if you check out the mongodb site, it only has 7 for Red hat.

so instead of using the variable, simply use 7 and it will be installed.

https://docs.mongodb.com/manual/tutorial/install-mongodb-on-red-hat/#install-mongodb-community-edition

1. edit /etc/yum.repos.d/mongodb-org-3.2.repo
2. add the following:

   [mongodb-org-3.2]
   name=MongoDB Repository
   baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.2/x86_64/
   gpgcheck=1
   enabled=1
   gpgkey=https://www.mongodb.org/static/pgp/server-3.2.asc

   3. sudo dnf install mongodb-org