Hello pelm, or anyone else affected,

Accepted systemd into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/249.11-0ubuntu3.6 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Tags removed: verification-done-jammy

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1981622

Title:
  mtd device must be supplied (device name is empty)

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Triaged
Status in systemd source package in Jammy:
  Fix Committed

Bug description:
  [WORKAROUND]

  This will NOT fix a system that is not booting, because the "mtd
  device must be supplied (device name is empty)" message is not the
  cause of failed boots. This work around is only for those who are
  annoyed by the error message, but are otherwise not experiencing any
  issues.

  If you are not able to boot your system, but you see this error
  message, please open a separate bug with your journalctl and dmesg
  logs.

  # cp /{lib,etc}/systemd/system/systemd-pstore.service
  # sed -i 's/modprobe@mtdpstore.service //' 
/etc/systemd/system/systemd-pstore.service
  # systemctl daemon-reload

  [Impact]

  Due to mtdpstore not being properly configured as a pstore backend,
  when systemd-pstore.service tries to load the module, users get the
  following error in dmesg:

  [   18.453473] systemd[1]: Starting Load Kernel Module mtdpstore...
  [   18.462685] mtd device must be supplied (device name is empty)

  This is a distracting error for users trying to diagnose other system
  issues, especially if their system does not boot after a kernel crash
  and this is the only message displayed on the console.

  [Test Plan]

  * Force a kernel crash to populate /sys/fs/pstore, thus causing
  systemd-pstore.service to start on the subsequent boot:

  # echo 1 > /proc/sys/kernel/sysrq
  # echo 1 > /proc/sys/kernel/panic
  # echo c > /proc/sysrq-trigger

  * When the system reboots, observe the error in dmesg:

  # dmesg | grep mtd

  [Where problems could occur]

  If a system was relying on this pstore backend, and mtdpstore is built
  as a module, it is possible for systemd-pstore.service to trigger
  before mtdpstore is loaded, causing systemd-pstore to not copy the
  contents of /sys/fs/pstore. Note however that before the patched
  introduced as a result of bug 1978079, systemd-pstore.service would
  not attempt to load *any* kernel modules.

  [Original Description]

  After updating my 22.04 system (possibly caused by Systemd update).
  And now booting, dmesg has two errors:

  'mtd device must be supplied (device name is empty)'.

  See line 8 and 134 in the included logfile.

  The system are booting as it should though, and the system are working
  like it should no errors at all.

  Is this maybe caused by 'efi-pstore-not-cleared-on-boot.patch' in
  systemd?

  I have an EFI mounted at boot but it isn't used because I have
  installed my system in legacy BIOS mode.

  Is this maybe the culprit?

  I could ignore the message but it isn't nice though.

  Regards

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