I went through a few SD cards when I was running Raspbmc (I actually wound up NFS mounting /home/xbmc so that when I had to reload the Pi, I wouldn’t lose all my settings and have to completely reconfigure it), so I decided to use NFS with OSMC since it was available. I also like that I can just shutdown the Pi and make a copy of the data stored on my QNAP to test new versions and the like instead of using a bunch of SD cards with clean installs. For example, I just made a copy of the folder on the QNAP (which had OSMC install with RetroPie) before I started to upgrade in case it went south.
My setup is using DHCP, but I have a reservation in my router so it’s always the same IP (not sure it matters).
Looks like this thread ([RC} NFS Install Issue Resolved) may be the solution again. I added the “,vers=3,tcp” immediately after the NFS path and I’m up to 37% of the update and I think it already passed the “mediacenter-addon-osmc (armhf)” package.