I suspect this was down to one of the newer revisions of the Pi board (the rev 1.4 4B?) appearing during the cycle.
This was fixed at some point during the Groovy release though, firstly by adding the explicit "rev 1.4" entry, and later by adding the "Raspberry Pi *" wildcard entry (in 3.100ubuntu3). I'll set this to "Fix Released" but if you're still having the issue, please do set it back to "New" and I'll dig into it. ** Changed in: flash-kernel (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1893491 Title: groovy arm64 raspi: Unsupported platform. dpkg: error processing package flash-kernel (--configure): To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/flash-kernel/+bug/1893491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs