I have a workaround for this.
Since the error is "rm: cannot remove '/var/log/udev': Is a directory" what I did was to manually remove the folder
sudo rm -r /var/log/udev and then restart the configuration of the packages with
sudo dpkg --configure -a
This led to a successfull upgrade to 16.04.
I have a workaround for this.
Since the error is "rm: cannot remove '/var/log/udev': Is a directory" what I did was to manually remove the folder
sudo rm -r /var/log/udev
and then restart the configuration of the packages with
sudo dpkg --configure -a
This led to a successfull upgrade to 16.04.