>      Thanks for pointing me to udevil (I've already read about it on 
> this list, but never looked at it before). Looks pretty simple. I'm 
> considering writing a script which would invoke udevil for
> mount/umount and do the same as sudox for other cases. The idea is to
> put that script in /usr/bin/local and a link to it in /usr/bin, named
> pkexec. I hope to be able to remove policykit with that.