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[Bug 2076216] [NEW] Ubuntu 24.04 LTS kernel 6.8.0-35 fails to boot up and get stuck at efi stub measured initrd data into pcr 9

 

Public bug reported:

>From our observation this issue is specific to certain server platform on which we found 6.8.0-35/36 exhibits the same failure symptom, seems like 6.8.0-39 works. On other server platforms 6.8.0-35/36/39 all boot up fine. 
We'd like to understand the root cause so we can know if the problem lies in specific server platform or in 6.8.0-35/36 kernel. 
Please refer to the screenshot for the exact screen where the system gets stuck indefinitely.

** Affects: horizon
     Importance: Undecided
         Status: New

** Attachment added: "S7Q 6.8.0-35 kernel stuck.png"
   https://bugs.launchpad.net/bugs/2076216/+attachment/5803276/+files/S7Q%206.8.0-35%20kernel%20stuck.png

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https://bugs.launchpad.net/bugs/2076216

Title:
  Ubuntu 24.04 LTS kernel 6.8.0-35 fails to boot up and get stuck at
  efi stub measured initrd data into pcr 9

Status in OpenStack Dashboard (Horizon):
  New

Bug description:
  From our observation this issue is specific to certain server platform on which we found 6.8.0-35/36 exhibits the same failure symptom, seems like 6.8.0-39 works. On other server platforms 6.8.0-35/36/39 all boot up fine. 
  We'd like to understand the root cause so we can know if the problem lies in specific server platform or in 6.8.0-35/36 kernel. 
  Please refer to the screenshot for the exact screen where the system gets stuck indefinitely.

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