ant wrote:
Technical details: org.freedesktop.UDisks.Error.PermissionDenied: Not Authorized: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.PolicyKit1 was not provided by any .service files
it says exactly here - could it be that you dropped the PolicyKit package or you are missing some extra privileges?
For me personally it looks like this: I refused to use systemd until I learn more about it. For this reason I marked as "hi policykit-1" and upower. I don't know if you use systemd or it infers somehow with it.
qdbusviewer comes handy - look in the System BUS
check if you are member of the required groups to handle the device management.
regards