You may be running into a problem trying to mount an exfat USB drive for the first time in your Fedora OS:

$ mount /dev/sda2 /media/storage1/
mount: /media/storage1: unknown filesystem type 'exfat'.

You will need to install fuse-exfat as follows:

$ wget http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
$ rpm -i rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
$ dnf install fuse-exfat
$ mount /dev/sda2 /media/storage1/
FUSE exfat 1.2.8