I did a clean install of 20.04 on my machine (which has been running Ubuntu, most recently 19.04, without issue so far) and I am facing this - importantly in my case it is NOT a harmless message but actually preventing boot - I am stuck in the initramfs prompt.
I tried the suggested workaround of editing "/etc/initramfs- tools/initramfs.conf" to specify COMPRESS=gzip instead of COMPRESS=lz4 to no avail (issue remains on next boot attempt). I can not run try elsewhere also suggested "sudo update-initramfs -u" command because as I understand it I am lacking the proper context in which this would be run - in the initramfs prompt I can not run it (or at least don't know how), and if I boot into live ubuntu (which works perfectly - this is also where I was able to edit the initramfs.conf file) I could probably run this although it would be in the wrong context (that of the live ubuntu, not the one on disk I installed previously). Thanks everyone for the effort to resolve this! I'll run 19.10 or another distro in the meantime and hope this can be resolved soon. -- 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 : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
