az vm create --computer-name did not set Virtual machine's Computer name

[suntong]

az feedback auto-generates most of the information requested below, as of CLI version 2.0.62

Related command

az vm create --computer-name my-vm-name

Describe the bug

I use
az vm create --computer-name my-vm-name
to give my Virtual machine a different Computer name, however, after creation, I saw from the portal that the Virtual machine's
Computer name is still the same as the name where the snapshot is taken.

To Reproduce

• take a snapshot of an existing VM
• create a new VM using the created snapshot via az vm create --computer-name other-name --attach-os-disk $osDiskName ...
• check the Virtual machine's Computer name from the portal

Expected behavior

The Virtual machine's Computer name from the portal should be named as 'other-name', and should not be the same as the VM's name where the snapshot is taken.

Environment summary

Under WSL Debian 11:

$ az --version
extension image-copy-extension contains invalid metadata for Python Package
azure-cli                         2.36.0 *

core                              2.36.0 *
telemetry                          1.0.6

Extensions:
image-copy-extension             Unknown

Dependencies:
msal                              1.17.0
azure-mgmt-resource               21.0.0

Python location '/usr/bin/python3'
Extensions directory '/home/foo/.azure/cliextensions'

Python (Linux) 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110]

Additional context

N.A.

[yonzhan]

compute

[xs2bharat]

having same issue

[yanzhudd]

Hi @suntong @xs2bharat
Sorry I am not very clear about your problem. The command az vm create would create a new virtual machine and the parameter --name should be used to specify the name of the VM you want to create, i.e.,
az vm create --name MyVirtualMachineName

[xs2bharat]

VM created from existing snapshot carry computer name of VM from where snapshot was taken regardless of --name ${name} --computer-name ${name}