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[Launchpad Bug Tracker <2120745@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug by Miriam España Acebal (mirespace):

My tests hit some unexpected failures with the labeling of SCSI data
disks on 25.04.

If a VM has say four data disks, with lun = 0, 1, 2, 3. We should also
see /dev/disk/azure/data/by-lun/{0,1,2,3} for both NVMe and SCSI
scenarios.    Tests show this working correctly for NVMe but SCSI disks
were missing.

I haven't root caused it yet, but it looks like udevadm test outputs
aren't aligning with the actual outputs.

$ disk=$(readlink -f /dev/disk/azure/scsi1/lun0)
$ sudo udevadm test $disk 2>/dev/null| grep AZURE_DISK_TYPE
  AZURE_DISK_TYPE=data
$ sudo udevadm info $disk | grep AZURE_DISK_TYPE
$

I would guess the initramfs was missing rules, but that's not the case
here (and it is initrdless boot).

I've not seen this issue with other images (22.04, 24.04) or latest
Debian?

To reproduce, create Ubuntu 25.04 VM on Azure with multiple data disks
(in my case, 4 of them with luns 0-3), install azure-vm-utils and verify
that /dev/disk/azure/data/by-lun/{1,2,3,4} is missing.

** Affects: azure-vm-utils (Ubuntu)
     Importance: Undecided
         Status: New

-- 
symlink failures for SCSI data disks on Azure (25.04)
https://bugs.launchpad.net/bugs/2120745
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