I was wondering if there is a way to import/clone/restore my gnome configuration from Ubuntu 12.04 to Ubuntu 14.04.
Both Ubuntu sit on two different HD installed in the same machine.
This ishad to run off and double check what you where going to need to look for.
Your personal gnome settings are located in 'hidden' directories in you home drive.
They are as follows:
~/.gnome
~/.gnome2
~/.nautilus
~/.gconf
The ~ indicates the users home drive.
So now you know where the settings are you have 2 options.
If yo have a separate partition on one of your 2 drives you should migrate your home drive to it. Then on each of the versions you need to point the system to this part it on (read up on the config file /etc/fstab).
Copy the above files to alocation that is accessible from distros, and then create links to them from you home directory on each instance.
The first option is going to be better long term, as it will enable you to keep all your files and config intact between upgrades, and with your current setup you will be able to test o the new version to ensure that no 'essential' stuff is broken before you do a full migration.
The second method is good if you are using multiple versions of something, it will enable you to easily switch between old and new forms of acceptable config. So better if you are interested in developing or testing.
References.
Hope that helps.
David.