I got this too on a post-beta1 Cooker (the first I had tried to install
for awhile), and on beta1 as well.
The problem was that the install was not configuring X (see my other
mail today). If I didn't manually click on "Graphical" on the summary
screen to force configuration *and* I had specified that X start up at
boot, I got exactly those messages during the boot after install.
