I have v03.04.01-230 installed and attempts to install minidlna have broken my install. I followed the instructions, but the apt-get fails, and then I have dependency issues that I cannot clear up.
I experience the exact same issue that someone else outlined here: http://community.wd.com/t5/WD-My-Cloud/Possibly-played-too-much/td-p/785287
I had to remove the drive, and rewrite rootfs.img in order to get it running again. I tried again, and came up with the same result.