Dual Booting LL 2.0 with other Ubuntu (14.04) based distros

[m654321]

Gold_finger, just one small question before I hit the 'solve' button (I found the 'topic solved' button at the bottom of the last post on the LHS of the screenview ) ...

My question...
When I boot  LL 2.0, in either a dual- or multi-boot system (all Linux based), it mounts the partition or partitions (e.g. '40 GB Volume' shown below an icon of the drive) for the other OS or OS-es on the top left-hand side of the desktop screen.  With the system I have, both Zorin OS and Elementary OS, do not do this. Is there something I can do to prevent these automounting on the screen?

Summarizing for the record...
The binding to a separate DATA partition worked really well for the dual boot system with LL2 and Zorin 9. Just for the record, I extended this to include the permissible maximum of four OSes on sda (i.e. I installed LL2.0, Zorin6, Zorin9 & Elementary (Luna) on sda - all Ubuntu based), and used sdb for the shared DATA partition and common Swap partition. When installing the different OSes one-by one, I used the 'something else' option at setup, to partition the drives. All the partitions were set up as 'logical partitions', though this probably doesn't matter as I did not exceed 4 partitions on either sda or sdb. 

Kind regards
Mike