Just tried to upgrade my Z1 to Z2 and increase to a 40Gb disk at the same time. When I put the new disk in the Z1, it came up with a message "Cannot use HDD" (in three languages).
I had a couple of issues which may be the cause, but would appreciate advice...
1) When I wrote the Z2 image using Acronis, it expanded all the directories to take advantage of the extra space. I used Paragon HD Manager to shrink all but the user partition back to the original size, and take up the extra space with a bigger user partition.
2) The partitions were not names USER etc, they were all named som