Thanks Koroziv, for the latest and greatest DSM 6.1 Virtual Machine OVF and disk files. Tested on ESXI 6.5 running on a Dell PowerEdge R420.
The VM on ESXI hardware version 13 is running fine, also with packages installed.
Here's the link to the installation PDF as requested (its modified to use with the latest DSM 6.1, build by Koroziv) :
https://dl.dropboxusercontent.com/u/501 ... %206.5.pdf
A copy of the DSM 6.1 Virtual Machine OVF and disk files, (build by Koroziv) build on ESXI hardware version 13 (so only for esxi 6.5 !), you can download here:
https://dl.dropboxusercontent.com/u/501 ... -15047.zip
Again, all the kudo's to Koroziv for sharing his knowledge !