@mickkael, Yes, that's a known issue and - as you've noticed - we have a fixed kernel in -proposed. We're still doing final testing before releasing it and building new Focal images.
I'll keep the ticket open until fixed images are available. ** Also affects: linux-raspi2 (Ubuntu Focal) Importance: Undecided Assignee: Balint Harmath (bharmath) Status: Invalid ** Changed in: linux-raspi2 (Ubuntu Focal) Status: Invalid => Confirmed -- 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/1868222 Title: rpi don't boot with 5.4.0-1004-raspi2 Status in linux-raspi2 package in Ubuntu: Confirmed Status in linux-raspi2 source package in Focal: Confirmed Bug description: -> tested on raspberry 3b+ and 4b After a fresh install of Ubuntu 20.04 (focal-preinstalled-server-arm64+raspi3.img), the rpi boots normally. Then execute an apt update/upgrade The Raspberry doesn't boot (no output on the console) Reverting the device tree to the previous version resolve the issue (a .bak is kept during the upgrade) (file bcm2710-rpi-3-b-plus.dtb for Raspberry 3b+, bcm2711-rpi-4-b.dtb for Rpi 4b) package linux-modules-5.4.0-1004-raspi2 $ cat /etc/os-release NAME="Ubuntu" VERSION="20.04 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu Focal Fossa (development branch)" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal $ dpkg -S bcm2710-rpi-3-b-plus.dtb linux-modules-5.4.0-1004-raspi2: /lib/firmware/5.4.0-1004-raspi2/device-tree/broadcom/bcm2710-rpi-3-b-plus.dtb linux-modules-5.4.0-1001-raspi2: /lib/firmware/5.4.0-1001-raspi2/device-tree/broadcom/bcm2710-rpi-3-b-plus.dtb linux-modules-5.3.0-1017-raspi2: /lib/firmware/5.3.0-1017-raspi2/device-tree/broadcom/bcm2710-rpi-3-b-plus.dtb $ apt show linux-modules-5.4.0-1004-raspi2 Package: linux-modules-5.4.0-1004-raspi2 Version: 5.4.0-1004.4 Priority: optional Section: universe/kernel Source: linux-raspi2 Origin: Ubuntu Maintainer: Ubuntu Kernel Team <kernel-t...@lists.ubuntu.com> Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 176 MB Download-Size: 29.9 MB APT-Manual-Installed: no APT-Sources: http://ports.ubuntu.com/ubuntu-ports focal/universe arm64 Packages Description: Linux kernel extra modules for version 5.4.0 on ARMv8 SMP Contains the corresponding System.map file, the modules built by the packager, and scripts that try to ensure that the system is not left in an unbootable state after an update. . Supports Generic processors. . Geared toward desktop and server systems. . You likely do not want to install this package directly. Instead, install the linux-raspi2 meta-package, which will ensure that upgrades work correctly, and that supporting packages are also installed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1868222/+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