I have backuped my config from the old 9.10.1-U2 NAS and restored it on an new installed 11.2-U1. Placed the data disks in the new system and fired it up. The system seems to be working quite good. 
But i have one small issue with updates. The old settings are also applied on the update train. So it is now set to
FreeNAS-9.10-Stable - Release train for FreeNAS 9.10.
The only other option is to select FreeNAS-11-Nightlies (unstable)
Which file do i need to edit to get the official 11.2 update train (I have another install running 11.2 without a restored backup, so there are files to use as source)
But i have one small issue with updates. The old settings are also applied on the update train. So it is now set to
FreeNAS-9.10-Stable - Release train for FreeNAS 9.10.
The only other option is to select FreeNAS-11-Nightlies (unstable)
Which file do i need to edit to get the official 11.2 update train (I have another install running 11.2 without a restored backup, so there are files to use as source)