You also need to make sure that the generated packages are correctly versioned, and that means updating the recipe revision, PR, with every change. It is possible to do this manually, but the recommended and compulsory way if you want to use package feeds is to use a PR server.

However, the PR server is not enabled by default. The packages generated without a PR server are consistent with each other but offer no update guarantees for a system that is already running.

The simplest PR server configuration is to run it locally on your host system. To do this, you add the following to your conf/local.conf file:

PRSERV_HOST = "localhost:0" 

With this setup, update coherency is guaranteed for your feed.

If you want to share your feed with other developers, or you are configuring a build server or package server, you would run a single instance of the PR server by running the following command:

$ bitbake-prserv --host <server_ip> --port <port> --start  

And you will update the project's build configuration to use the centralized PR server, editing conf/local.conf as follows:

PRSERV_HOST = "<server_ip>:<port>"  

Also, if you are using a shared state cache as described before, all of the contributors to the shared state cache need to use the same PR server.

Once the feed's integrity is guaranteed, we need to configure an HTTP server to serve the feed.