This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1809168 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1809168 Title: FIPS and Ubuntu standard kernels prior to 4.11.0 won't boot; root device not found Status in linux package in Ubuntu: Incomplete Bug description: [IMPACT] Booting of the Xenial-based FIPS kernel packages failed with disk not found errors on amd64. This was also observed on standard Ubuntu kernels prior to 4.11.0. FIPS ------ 1. linux-image-4.4.0-1002-fips <-- FAIL 2. linux-image-4.4.0-1006-fips <-- FAIL UBUNTU ------------ 1. Bionic kernels all WORK 2. Artful kernels: Ubuntu-4.11.0-1.6 <-- WORKS Ubuntu-4.10.0-26.30 <-- FAILS 3. Xenial kernels: Ubuntu-hwe-4.11.0-12.17_16.04.1 <--- WORKS Ubuntu-hwe-4.10.0-43.47_16.04.1 <--- FAILS Ubuntu-lts-* <--- ALL FAIL Ubuntu-4.4.0-* <--- ALL FAIL We have narrowed down the window to be: 4.11.0-1.6 (custom build) <--- WORKS 4.10.0-43.47~16.04.1 <-- FAILS Also works: https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11/linux-image-4.11.0-041100-generic_4.11.0-041100.201705041534_amd64.deb Symptoms ------------- System cannot find the root disk and drops into an initramfs shell: mdadm script local-block "CREATE group disk not found" "Gave up waiting for root device. Common problems: - Boot args (cat /proc/cmdline) - Check rootdelay=... - Check root= ... - Missing modules (cat /proc/modules; ls/dev) ALERT! UUID=... does not exist. Dropping to a shell! ... (initramfs)_ There does not appear to be any workaround so far. The disks are encrypted SSDs. Attaching commit list between the last known failing Artful kernel and earliest known working kernel (adjacent tags) and other info. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809168/+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