For me its happening the same, if lz4 is activated get this initramfs unpacking failed: Decoding failed at first line of boot, if switch to gzip the error is gone, switching back to lz4 make the initramfs unpacking failed: Decoding failed back again at boot, staying at gzip for the time being.
Also no idea if relative, on my machine running Ubuntu Cinnamon 20.04 , when the lz4 is activated over the initramfs , it gives the error at boot and will not show the oem logo during boot, if gzip is activated, no error and it does show the oem logo during boot. Secure boot on my machine have been always disabled and remains disabled. ** Changed in: initramfs-tools (Ubuntu) Status: Invalid => Confirmed -- 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: Confirmed 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 : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp