This article is for Fedora Gnome Shell users, who does not wish to enter root password while mounting partition as normal user.
You need to search & replace
yes from the following file.
Or use following command
cp /usr/share/polkit-1/actions/org.freedesktop.udisks2.policy /usr/share/polkit-1/actions/org.freedesktop.udisks2.policy.bak sed -i 's/auth_admin_keep/yes/g' /usr/share/polkit-1/actions/org.freedesktop.udisks2.policy
Once you are done with changes, you’ll not be prompted to enter root password for authentication.