[stiwi]

So what is your setup? Are you sharing USB connected HDD to Mac OS X via NFS for Kodi? I have no experience in this case but have never had problems with NFS shares on internal hard drives both on Mavericks and now on Yosemite when using NFS Manager. It is not free, but you can use it skipping the licence window all the time, the licence is, or at least was so far, considered more as a donation than something that unlocks certain features.