You're quite right; this is a duplicate of bug 76976. It has nothing to do with the model of your disks or anything, but simply occurs whenever there's unpartitioned free space on any disk. Run 'sudo apt-get update; sudo apt-get install ubiquity' from a terminal window before starting the installer to get the fix.
You're quite right; this is a duplicate of bug 76976. It has nothing to do with the model of your disks or anything, but simply occurs whenever there's unpartitioned free space on any disk. Run 'sudo apt-get update; sudo apt-get install ubiquity' from a terminal window before starting the installer to get the fix.