Comment 5 for bug 1884538

> Is it possible to keep this package in universe because community wants to build netboot image their own. That means keeping all the dependencies as well. But they can just sync from debian.

Not really, no. Ubuntu d-i has significant improvements over the debian one, and it would be a regression reverting to debian version of udebs.

Also, d-i from universe does not really work, as it has to be always be build with a matching kernel ABI _and_ all of the userspace abi changes, _at the same time_, implying hard interlock on our kernel release cadence. As in, one has to rebuild d-i with every kernel upload and ensure they migrate in sync with any in-progress ABI changes in the release. It significantly hinders and deadlocks distribution development. Whenver things are missmatched, d-i simply fails to fetch/download/install udebs and fails with critical errors saying that either kernel modules are not available or it cannot install partman udebs rendering it useless.