[Mono-list] Mono, C#, RaspberryPi2 and MS Azure

Edward Ned Harvey (mono) edward.harvey.mono at clevertrove.com
Thu Feb 4 12:15:06 UTC 2016

> From: mono-list-bounces at lists.ximian.com [mailto:mono-list-
> bounces at lists.ximian.com] On Behalf Of myusername
> <http://mono.1490590.n4.nabble.com/file/n4667362/new-2.jpg>

Looks like you're getting TlsException, when fetching from the https server. Most likely this means you don't have any installed trusted root CA's. I'm not sure how mono gets installed in raspberry pi, but the mono trusted root CA list is separate from the OS root CA list (which you may or may not have).

To find out if you have root CA's installed, look in...
(There's a distinct possibility these directories will be different for a raspberry pi ... I'm just not sure...)

If there's nothing there, you might need to populate it with cert-sync or mozroots. (Executables that are installed as part of mono). Mozroots downloads the certs from mozilla over the internet. Cert-sync copies them from your /etc directory. 

If cert-sync and mozroots aren't available (or don't work) in raspberry pi, you can run it on some other system, and then copy the files, preserving permissions.

Since some recent version of mono (I guess around 4.1) the yum and apt packages automatically run cert-sync during installation. The same is not true when building from source, copying binaries, using an older version, or on a non-rpm non-deb system. Also, if raspberry pi uses a different OS root ca package, then even if cert-sync is run automatically on the pi, it would still fail to populate anything, and mozroots would then be your best bet.

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