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When I used Jun's 1.02b loader on a spare PC it was a simple process with ESXi to create a VM, copy the synoboot.img and .vmdk files to the VM, and create a drive pointing to synoboot.vmdk. I did this multiple times while getting used to the installation process and trying ds3615xs vs ds3617xs. I used the exact same process on the R720xd I just received this week and couldn't get it working. Xpenology was not being assigned an IP address (I was looking at my router's lease table). I eventually found some internet threads saying you can go into the command line during boot and type in set mac1=00x11x32x2cxa7x85. This allowed DHCP to get an address and Xpenology worked as expected. The MAC address that showed up in my router matched the address that ESXi was assigning the network card. After a few iterations of this I decided to hard code the IP address in DSM (as opposed to setting static IP assignment by MAC that I normally do). This however still would not work unless I used the 'set mac1=' command during boot. After some research I found you could update the grub.cfg with a new MAC and serial number. I couldn't figure out how to extract grub.cfg from the synoboot.img but I was able to find MAC address in synoboot.img with a hex editor: I changed this to my ESXi assigned MAC address (00:0c:29:61:e4:a4) but I still couldn't the loader to get an IP address but would if I used set mac1=00x11x32x2cxa7x85. Is there a way to change the default MAC address in synoboot or am I stuck with manually assigning 00:11:32:2c:a7:85 to Xpenology?