Openhabian setup fails on Raspebrry Pi3, 1.5 & 1.4.1 both at same place

[mstormi (Markus Storm)]

1.4.1 and 1.5 both update themselves to latest version before proceeding so they’re essentially the same.

I guess you’re not doing anything wrong and your problem is related to this:

APT Repo Public Key Expiration & Update

Is there something else going on with the repo tonight? Unfortuantely there is… at the moment, Bintray can’t sign the repository, which is why you get this error. Hopefully this will be fixed when the right person can get to the problem, but if not I will get a workaround to you as soon as I can.