TODO this page needs updating.
The following assumes that you already have a built tree rooted in openxt.git with a completed build. It also assumes the build was done with with INHIBIT_RMWORK set. INHIBIT_RMWORK is set by default, and tells the build scripts to not delete the temporary packages build folders, so that we can go there, modify and rebuild source code.
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If, for example, you forgot the V4V module, the toolstack won't boot and the UI won't come up. In that case, simply reboot, choose the command line boot in grub, log in, enable networking (udhcpc -i eth0), and fix it.
If you are making modifications to a package or component that uses a patch queue, consult the instructions for Dealing with Quilt.