getwidevine.sh isn't installing the inputstream.mpd add-on, it's only installing the libwidevine library which is needed by the inputstream.mpd add-on to decrypt encrypted content.
With official LibreELEC Kodi 17 releases (alpha, beta, whatever) you'll need to install the inputstream.mpd add-on from the LibreELEC Add-ons repository.
/facepalm
Ok thanks, I'm an idiot. I should have noticed. My bad.
Still happening with the latest Alpha.
It seems with the Kodi 17 LibreELEC inputstream doesn't work for some reason (RPi2)? I installed it via: curl -Ls getwidevine.sh | bash
It did say sucessfully installed ....
10:42:24 T:1716048800 NOTICE: [Amazon VOD] [('mode', 'openSettings'), ('url', 'inputstream.mpd')]
10:42:24 T:1716048800 ERROR: EXCEPTION: Unknown addon id 'inputstream.mpd'.
10:42:24 T:1716048800 ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
- NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
Error Type: <type 'exceptions.RuntimeError'>
Error Contents: Unknown addon id 'inputstream.mpd'.
Traceback (most recent call last):
File "/storage/.kodi/addons/plugin.video.amazon-test/default.py", line 1632, in <module>
elif mode == 'openSettings': xbmcaddon.Addon(url).openSettings()
RuntimeError: Unknown addon id 'inputstream.mpd'.
-->End of Python script error report<--Does it currently only work with the Milhouse-Testbuilds?
Till we have a proper fix, you can remove addon.db from the userdata/database/ folder. This fix it but you have to activate all your addons again.
Updated from OpenElec. I will try your suggestion. Thanks.
Edit: I did that and he really does disable all the addons and dependecies, even the default ones. I can't handle enabling all of them again lol I hope you can come up with a fix.
I'm trying to install a PVR (Simple) from the LibreELEC repo but it does nothing.
karcyon: what build are you on, and what version?
LibreELEC-RPi2.arm-6.90.002
Edit: adding the LibreELEC-RPi2.arm-6.90.003.img.gz manually to the Update folder worked. Just not the in-app update. Strange. Should have done some logging. Sorry about that 
Updating from inside the LibreELEC app doesn't seem to work for me. It downloads the update, unpacks it, restarts but doesn't install the update.
tar will still be useful for people upgrading from OE as afaik you can't upgrade a oe install with an img or img.gz file.Sent from my U65GT using Tapatalk
So for Updating from the current OE Beta to official LE release just put the .tar in the Update folder? Or would it be better to start from scratch?
Edit: Updating worked nicely.
Can't wait to see what you guys are up to! 