Download Ubuntu and install with default settings.
Optional – manually partition hard drive with a swap partition:
Installing an additional hard drive, you will need to set it up to auto mount and give it a friendly name:
To activate Desktop Sharing (aka VNC): Once logged in, log out and under the login settings, choose the Ubuntu 2D desktop. TightVNC is a good vnc client for windows that works well with ubuntu. RealVNC is also good.
Once installed, configure samba for file sharing:
Optional: setup user and group permissions for samba:
Now configure DLNA.
See here for a comparison of programs:
Easiest setup is minidlna (but it doesn’t offer transcoding):
Helpful linux commands: