How to switch back to Bitcoin Core on Start9?

[StuPleb]

Have you tried the Guides category?

Guide: Switching from Bitcoin Core to Bitcoin Knots on StartOS v0.3.5.1

Context Bitcoin Core and Bitcoin Knots both appear as interchangeable on StartOS 0351 and this is both intentional and a result of a missing feature. By design, because we aim to facilitate seamless switching between similar services that share most of the same data, ensuring that users can transition without needing to resync the entire Bitcoin blockchain from scratch. With this “hack” both Core and Knots will be able to utilize the same already downloaded blocks without you needing to uninst…

There’s an explanation for what you’re seeing, and you can follow this guide in reverse.