Comment 0 for bug 1551419

Revision history for this message
Stephen A. Zarkos (stevez) wrote : Fix UUID endianness patch breaks cloud-init on Azure

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.