For those who have issue to update their NS2 from 1.0.2 to 1.2.5 through LNA, please follow this :
Network recommendations for Share Update
Stop any transfers to the NAS
Stop all downloads, backups, copies, and programs that access or run from your LaCie device
Disconnect all shares on the NAS you want to update from every machine connected to it.
Share Update Steps :
Get the 1.2.5 or 1.2.9 (this is the one I used and it worked) Update Capsule from LaCie Web Site or from Tech Support.
Connect to share named “MyShare”, and put Update capsule file in it. (only available for 1.0.2 version)
Restart your device by using Web interface, or by using Power Button.
DO NOT DISCONNECT POWER CABLE TO RESTART THE DEVICE
Please be patient as the update may take some time. It is critical that the LaCie device remains powered on while the update is running.
DO NOT TURN OFF YOUR DEVICE DURING UPDATE. (Or you might brick the darn black box!)
Your LaCie device will reboot twice, a first time after you asked for restart, to begin the update and a second time automatically when it has finished. Do not be concerned if your LaCie device boots slower than usual as it is normal during an update.
At this point you will be able to update to the latest version 2.0.5.
I had to shut down and resart net drive a third time AND retart the Lacie Network Assistant App to get it to 'see' the network drive.