I recall that on one of my machines I had exactly the same situation as reported in #20 and #21 up to the timings (5.3.0-26-generic in Ubuntu 19.10 with EFI Secure Boot and dual boot with Windows 10, fastboot/hibernation disabled, LZ4 image by default, booting failed often, booting succeeded upon reinstall with EFI secure boot). Unfortunately, I don't have this machine any longer. @mario-gleirscher would probably be of help if they provide us with some debugging when asked by the Ubuntu maintainers.
On another machine, I still have this annoying printf in dmesg (and journalctl -b): [ 0.215092] NET: Registered protocol family 1 [ 0.215096] NET: Registered protocol family 44 [ 0.215105] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 0.215670] PCI: CLS 64 bytes, default 64 [ 0.215696] Trying to unpack rootfs image as initramfs... [ 0.303126] Initramfs unpacking failed: Decoding failed [ 0.306614] Freeing initrd memory: 48364K I run 5.4.0-42-generic in Ubuntu 20.04.1 LTS focal. As for me, this issue seems to simply uselessly burn processor cycles (and, as every such issue, indirectly generate superfluous carbon dioxide); there is a potential for optimization here. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1835660 Title: initramfs unpacking failed Status in initramfs-tools package in Ubuntu: Invalid Status in linux package in Ubuntu: Confirmed Bug description: "initramfs unpacking failed: Decoding failed", message appears on boot up. If I "update-initramfs" using gzip instead of lz, then boot up passes without decoding failed message. --- However, we currently believe that the decoding error reported in dmesg is actually harmless and has no impact on usability on the system. Switching from lz4 to gzip compression, simply papers over the warning, without any benefits, and slows down boot. Kernel should be fixed to correctly parse lz4 compressed initrds, or at least lower the warning, to not be user visible as an error. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835660/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp