http://bugzilla.opensuse.org/show_bug.cgi?id=1190326 Bug ID: 1190326 Summary: Update to kernel 5.14 makes disks disapear/system unbootable Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: dennis@glindhart.dk QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Updating to kernel 5.14 (Tumbleweed Sep 5 2021 snapshot) makes system unbootable when running on top of Xen-server. This seems like a general kernel 5.14 bug, not specific to openSuSE/Tumbleweed as I can reproduce on Fedora 34 (by updating to 5.14 testing kernel from koji). 5.13 works perfectly. On Tumbleweed, during boot it hangs in "starting dracut initqueue hook" and times out waiting for /dev/disk/by-uuid/xxxx It seems like kernel cannot identify the disks at all (working fine on 5.13) After entering the recovery-mode, follow is observed: - lsblk shows only the CD-rom drive - ls /dev/disk/ only has by-path and by-id. by-uuid directory is gone. I've reproduced the problem in cleanly installed Tumbleweed (both MicroOS/Ignition and install from ISO), and clean installed Fedora 34. Following kernel versions tested/are affected: 5.14.0 and 5.14.1 (5.14.1 tested on Fedora). Can be reproduced on Fedora with both BTRFS and XFS/LVM install, so not specific to BTRFS. Reproduced on two seperate XCP-ng 8.2 (xen-based) Hypervisors. From hypervisors: # yum info qemu Installed Packages Name : qemu Arch : x86_64 Epoch : 2 Version : 2.10.2 Release : 4.5.3.xcpng8.2 Size : 19 M Repo : installed From repo : install Summary : qemu-dm device model License : GPL Description : This package contains Qemu. # uname -a Linux hostname 4.19.0+1 #1 SMP Wed Dec 16 12:16:11 CET 2020 x86_64 x86_64 x86_64 GNU/Linux -- You are receiving this mail because: You are the assignee for the bug.