Raspberry Pi OS • Getting 'raspian buster ... key not available' Error

(Two previous postings describe the beginning of 'this journey' but now I've hit another snag.)

(background)
I can't get the WideVine Digital Rights Management ('DRM') plug-in to install in the FireFox Web Browser on my Raspberry Pi 5 PC (running the 64 bit Raspberry Pi OS).

When I put together a more descriptive title together (than my first message) asking for assistance I rather quickly received a response from someone who said that they are able to view DRM protected videos on their Raspberry Pi 5 PC.

From their description I believe that their Raspberry Pi 5 PC may be newer than mine and so its software is of newer issue.

Their comment got me wondering if there is something lacking in my Raspberry Pi 5's software as it has 'grown' through upgrades from when my Raspberry Pi 5 PC was first turned-on in early 2024.

This got me thinking that I needed to check my Raspberry Pi 5 PC ... to make sure that everything is up-to-date.

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What I've now run into (and am seeking guidance in fixing).

When I run 'Recommended Software' (under 'Preferences' on the Raspberry Pi OS Desktop) I receive an error message saying :

Error updating package data

raspian buster .... signatures couldn't be verified because no public key is available

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When I do a Google Search I see references to this problem but don't understand what was done to resolve it.

I would appreciate suggestions on how to fix it.

- Paul, WB5AGF

Statistics: Posted by Paul-WB5AGF — Mon Apr 21, 2025 3:38 pm

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