Bug 1911836 - Cannot boot kernel 5.10 on Silverblue
Summary: Cannot boot kernel 5.10 on Silverblue
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 33
Hardware: Unspecified
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2020-12-31 16:46 UTC by Stanislav Graf
Modified: 2021-01-15 07:55 UTC (History)
20 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed:
Type: Bug

Attachments (Terms of Use)

Description Stanislav Graf 2020-12-31 16:46:28 UTC
1. Please describe the problem:

I cannot boot with kernel 5.10 on Fedora Silverblue.
The boot process is stuck on attempt to mount root filesystem:
"A start job is running for /dev/disk/by-uuid/..."

2. What is the Version-Release number of the kernel:


3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :

All 5.9.x works for me. Any 5.10 kernel from koji is broken.

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:

rpm-ostree override replace kernel-5.10.4-200.fc33.x86_64.rpm kernel-core-5.10.4-200.fc33.x86_64.rpm kernel-devel-5.10.4-200.fc33.x86_64.rpm kernel-modules-5.10.4-200.fc33.x86_64.rpm kernel-modules-extra-5.10.4-200.fc33.x86_64.rpm

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:

I haven't tested 5.11 rawhide kernels yet.

6. Are you running any modules that not shipped with directly Fedora's kernel?:


7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.

I don't have saved logs since rootfs isn't mounted.

8. Notes:

* This is silverblue specific. I can boot this on Fedora Workstation
* Behaves the same on a system with or without luks (disk encryption)
* Happens on both VM or host itself
* Can this be related to Bug 1900061 ?

Comment 1 Stanislav Graf 2021-01-07 21:12:28 UTC
Still broken for me with kernel-5.10.5-200.fc33

Comment 2 Evan Anderson 2021-01-08 22:47:52 UTC
I can confirm this on my existing bare metal Silverblue installation and on a fresh VM Silverblue installation with disk encryption enabled. I can't reproduce it with an unencrypted installation.

The kernel comes up fine, but systemd is stuck waiting for the disk, and the disk decryption prompt is never shown.

Comment 3 Evan Anderson 2021-01-08 23:56:24 UTC
I can also reproduce this issue using rawhide kernel 5.11.0-0.rc2.114.fc34.x86_64.

Comment 4 Evan Anderson 2021-01-14 22:21:06 UTC
I'm no longer able to reproduce this issue in the released version of 5.10.6-200.fc33.x86_64.

Comment 5 Stanislav Graf 2021-01-15 07:55:46 UTC
(In reply to Evan Anderson from comment #4)
> I'm no longer able to reproduce this issue in the released version of
> 5.10.6-200.fc33.x86_64.

The same here. All works as expected now!

Note You need to log in before you can comment on or make changes to this bug.