It seems this is no longer needed since we're going to backport the 5.3 Eoan kernel to add Pi 4 support to Bionic.
FWIW, I've pushed my Bionic 4.15 WIP branch here: https://git.launchpad.net/~juergh/+git/bionic-linux/log/?h=lp1847256 ** Changed in: linux-raspi2 (Ubuntu Bionic) Status: Confirmed => Invalid ** Changed in: linux-raspi2 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1847256 Title: Support Raspberry Pi 4 Status in linux-raspi2 package in Ubuntu: Invalid Status in linux-raspi2 source package in Bionic: Invalid Bug description: Add support for the Raspberry Pi 4 to Bionic 4.15. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1847256/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp