Getting Used to Cumulus Linux – Updating Packages to Fix Problems

I want to share a story of a recent issue I encountered with a customer. The customer is using Namespaces, which act like a VRF for the management interface. This operates just fine, but in the release the customer is running, 2.1, when you upgrade your interface configuration is lost. In 2.5 a feature was added to backup the configuration, but now I’m in a bit of a Catch-22: I need to upgrade to get my bug fix, but I trigger the bug by upgrading.

I just need to figure out a way to upgrade only that feature before we upgrade the platform.

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