Ubuntu Server install gotcha

Just installed Ubuntu 14.04 server with an existing VERY LARGE data volume mounted. At the end of the install it hung for over 1/2 hour, showing 97% completed and status Cleanup.

Then I noticed that my very large data volume was being accessed. Since I had configure the mountpoint and asked that it NOT be formatted, I assume that it was running updatedb on the thing in order to populate the locate database. No useful to me, so I killed & re-ran the install.