I don't like the idea of a non-root user being able to mount partitions on my system (or mount them with write-privileges to be more specific). Even though mount only works for root users, my file manager dolphin can mount partitions without root access. I came across this answer, but removing my user from plugdev didn't change anything. Then I found out that udisksctl might have to do something with it, but I couldn't find a way to disable udisksctl for users (editing /usr/share/polkit-1/actions/org.freedesktop.udisks2.policy didn't change anything), so I just renamed /usr/bin/udisksctl and restarted and... dolphin can still mount partitions.
Now my question: How can I make mounting partitions only possible for root users?
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