There where many post on getting a migration work under vmware (no network after migration).
These we're the steps I performed to update my virtual machine from dsm 6.0 to dsm 6.1 with Jun's loader v1.02a :
Copy dsm6.0 vm to new folder
Copy synoboot.img, synoboot.vmdk to new vm folder
Boot machine
Start syno, install and migrate. After migrate wait at least 5 minutes, the system will not be reachable any more. Shutdown
Prepare a bootable (liliboot) Linux live cd with gparted.
Boot to EFI to boot from usb.
Goto gparted terminal
Mount raid system partition:
sudo mdadm -AU byteorder /dev/md0 /dev/sdb1
cd /mnt
sudo mkdir md0
sudo mount /dev/md0 md0
sudo cd md0
Do the copy modules trick :
sudo cp lib/modules/update/* /lib/modules/
Reboot, you should be able to connect