kernel-packages team mailing list archive

[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This commit is in the upstream kernel tree and has been backported to
every Ubuntu kernel.

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https://bugs.launchpad.net/bugs/1551419

Title:
  Fix UUID endianness patch breaks cloud-init on Azure

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On Azure, cloud-init relies on the system-uuid as based by SMBIOS a
  unique ID for a cloud instance.  If this ID ever changes, then cloud-
  init will attempt to reprovision the VM.

  This recent kernel patch in the Ubuntu kernel corrects the endianness
  for some SMBIOS fields, but also has the effect causing cloud-init to
  think that the system-uuid has changed:
  http://kernel.ubuntu.com/git/ubuntu/ubuntu-
  trusty.git/commit/drivers/firmware?id=3ec24c55be6c543797ba3ee9a227a5631aef607e

  The impact is that cloud-init attempts to reprovision the VM, often
  causing the customer to lose access to their VM.

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