[NiLuJe]

@Woh:

First things first: there's an auto-moderation system in place on the forum. Your post simply tripped that, because you're a new account, the post was longish, and included multiple quotes. The system doesn't like that, because that's indicative of pyramid-quoting spambots. In the same vein, links, and inlined media would also have weighed towards automatically throwing a post in the mod queue.

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Second: Poeple usually conflate install with usage. My original answer assumed that the issue truly lied in usage, not installation instructions.

Because, yeah, install instructions are essentially "put file in folder, click button". And that's not really all that interesting to repeat seven hundred billion times. And, on your target device, that bit of documentation belongs in MRPI, not individual packages.
Hence why individual packages says "do it the usual way". Because "the usual way" is highly contextual, and barely relevant to said package's documentation. It's a bit of info covered by the original JB instructions.

Now that you've *actually* answered the simple question I asked precisely for the purpose of figuring out whether the issue lied in install or usage, I can tell you that, yeah, you originally did it wrong. As you yourself explained, going through the MRPI thread to read its doc and then install it through that was precisely the right way to approach this.

Your initial confusion may stem from the fact that you're replying in a ten-year old thread that's absolutely not targeting your own device, which probably didn't help you getting documentation relevant to your specific case.

Like I said: it's highly contextual.