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I ran into this as well and fixed it by looking at the list of held-back packages:

The following packages have been kept back:

  ros-groovy-actionlib ros-groovy-common-msgs ros-groovy-geometry
  ros-groovy-nodelet-core ros-groovy-pluginlib ros-groovy-ros
  ros-groovy-ros-comm ros-groovy-ros-tutorials ros-groovy-rosgraph
0 upgraded, 0 newly installed, 0 to remove and 9 not upgraded.
ubuntu@arm:~/catkin_ws$

I did a manual 'apt-get install ros-groovy-actionlib', which succeeded. That apparently released all the others except ros-groovy-rosgraph, because now apt-get upgrade reported:

The following packages have been kept back:
  ros-groovy-rosgraph
The following packages will be upgraded:
  ros-groovy-common-msgs ros-groovy-geometry ros-groovy-nodelet-core
  ros-groovy-pluginlib ros-groovy-ros ros-groovy-ros-comm
  ros-groovy-ros-tutorials
7 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 42.3 kB of archives.
After this operation, 66.6 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y

Now I could apt-get install ros-groovy-rosgraph to finish the job. I was able to get roscore running successfully after this.

I ran into this as well and fixed it by looking at the list of held-back packages:

The following packages have been kept back:

  ros-groovy-actionlib ros-groovy-common-msgs ros-groovy-geometry
  ros-groovy-nodelet-core ros-groovy-pluginlib ros-groovy-ros
  ros-groovy-ros-comm ros-groovy-ros-tutorials ros-groovy-rosgraph
0 upgraded, 0 newly installed, 0 to remove and 9 not upgraded.
ubuntu@arm:~/catkin_ws$

I did a manual 'apt-get install ros-groovy-actionlib', which succeeded. That apparently released all the others except ros-groovy-rosgraph, because now apt-get upgrade reported:

The following packages have been kept back:
  ros-groovy-rosgraph
The following packages will be upgraded:
  ros-groovy-common-msgs ros-groovy-geometry ros-groovy-nodelet-core
  ros-groovy-pluginlib ros-groovy-ros ros-groovy-ros-comm
  ros-groovy-ros-tutorials
7 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 42.3 kB of archives.
After this operation, 66.6 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y

Now I could apt-get install ros-groovy-rosgraph to finish the job. I was able to get roscore running successfully after this.

So there are a couple points here I guess:

I was able to get my Groovy install to a point where it could run roscore using the above procedure.
I didn't have to do a 'dist-upgrade' to get this all working.
Fixing install order dependencies for individual packages (if they occur) is preferable to breaking your whole OS install if a dist-upgrade goes bad for some reason.