Hi all, Im new with OpenWRT.
Using a R9000 router when I try to update system (from the system menu software) or attempt to use the command line to install No-IP DDNS I get the error
Not really openwrt, ask your software provider to help you with sdk to build packages or correct url-s.
It appears you are using firmware that is not from the official OpenWrt project.
When using forks/offshoots/vendor-specific builds that are "based on OpenWrt", there may be many differences compared to the official versions (hosted by OpenWrt.org). Some of these customizations may fundamentally change the way that OpenWrt works. You might need help from people with specific/specialized knowledge about the firmware you are using, so it is possible that advice you get here may not be useful.
Ask for help from the maintainer(s) or user community of the specific firmware that you are using.
Provide the source code for the firmware so that users on this forum can understand how your firmware works (OpenWrt forum users are volunteers, so somebody might look at the code if they have time and are interested in your issue).
If you believe that this specific issue is common to generic/official OpenWrt and/or the maintainers of your build have indicated as such, please feel free to clarify.
Well, the repo that you've been using would be correct for an official OpenWrt snapshot version.
However, what you're using is not from the official project, so the correct repo would be with the people who provided the firmware you installed. Pointing to the official OpenWrt repo doesn't work since your device isn't supported and thus the packages that are offered here wouldn't be compatible with your device.
The target specified is "Alpine" which is not supported and thus doesn't exist... that's the main reason for the 404. The only place to get packages for your router would be form the maintainer of the firmware that you installed... it did not come from here.
Meanwhile, even if the platform was supported, snapshots have moved to the Alpine Package Keeper, moving away from the older opkg system. So now any attempts to use opkg on snapshots will result in 404's. Here, it's important to clarify that we're talking about the Alpine hardware platform above (not supported by OpenWrt) vs the Alpine Package Keeper (a software package manager that is supported in recent official OpenWrt snapshots).
All that said, the repo would be incompatible with your router since that device isn't supported here anyway. It's like trying to install DDR4 memory into an Apple II computer.