If the Raspberry Pi’s internal clock is incorrect (common without a real-time clock battery), SSL handshakes with repository servers will fail. Step-by-Step Solutions 1. Clear Local DNF Cache
The error "" typically occurs on Rocky Linux installations for Raspberry Pi when the system cannot reach or synchronize with the specific repository used for ARM-based hardware. This often stems from a combination of deprecated repository links, local cache corruption, or network misconfigurations. Common Causes failed to download metadata for repo 'rocky rpi'
Sometimes dnf caches an incomplete or invalid state from a mirror, preventing it from performing future updates. If the Raspberry Pi’s internal clock is incorrect
If you are using Rocky Linux 8 and encounter this error, it is likely because the rockyrpi repository has moved. This often stems from a combination of deprecated
Firewall rules, DNS resolver failures, or IPv6 connectivity problems can block access to the repository mirrors.
The rockyrpi repository was moved to a Special Interest Group (SIG) repository in older versions (like Rocky 8.6), making the original hardcoded URL invalid.
Run the following command to delete all cached data: sudo dnf clean all .
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