Reset admin VM password on Azure (create a user when you are locked out of the vm) on ARM aka V2.

Pre-requisite: Ensure that the VM is running.

Reset password: You need to create a different user with the same privilege as the original admin user. After you login to the box, change the original admin’s password.

Important points:

1.       Powershell doesn’t work

a.       Approach 1:

 #select vm

$centosvm =

    (Get-AzureRmVM |

     Out-GridView `

        -Title "Select an Azure VM ..." `

        -PassThru)

PS C:\Users\XXX> $centosvm | Set-AzureRmVMOperatingSystem -Credential $cred -Linux -ComputerName $centosvm.Name| Update-AzureRmVM

Update-AzureRmVM : PropertyChangeNotAllowed: Changing property 'osProfile' is not allowed.

OperationID : '4df65df4-eda1-4b2c-88ba-2195fe4fa32d'

At line:1 char:97

+ ... redential $cred -Linux -ComputerName $centosvm.Name| Update-AzureRmVM

+                                                          ~~~~~~~~~~~~~~~~

    + CategoryInfo          : NotSpecified: (:) [Update-AzureRmVM], ComputeCloudException

    + FullyQualifiedErrorId : Microsoft.WindowsAzure.Commands.Common.ComputeCloudException,Microsoft.Azure.Commands.Compute.UpdateAzureVMCommand

b.       Approach 2:

PS C:\Users\xxxx> $centosvm = Get-AzureRmVM | Where-Object {$_.name -eq "$vmname"}

PS C:\Users\xxxx> Set-AzureRmVMOperatingSystem -ComputerName centosweb1hdicp -Credential $vmAdminCreds -Linux -VM $centosvm

PS C:\Users\xxxx> $vmconfig = Set-AzureRmVMOperatingSystem -ComputerName centosweb1hdicp -Credential $vmAdminCreds -Linux -VM $centosvm

PS C:\Users\xxxx> Update-AzureRmVM -ResourceGroupName HDInsightHBTC -VM $vmconfig

Update-AzureRmVM : PropertyChangeNotAllowed: Changing property 'osProfile' is not allowed.

OperationID : 'dd785f5b-0bbc-4b0a-bf75-0bf722d4b476'

At line:1 char:1

+ Update-AzureRmVM -ResourceGroupName HDInsightHBTC -VM $vmconfig

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : NotSpecified: (:) [Update-AzureRmVM], ComputeCloudException

    + FullyQualifiedErrorId : Microsoft.WindowsAzure.Commands.Common.ComputeCloudException,Microsoft.Azure.Commands.Compute.UpdateAzureVMCommand

2.       ARM json snippet doesn’t work

        "osProfile": {

                "computerName":"centosweb1hdicp",

          "adminUsername": "MppUsWest2admin",

          "adminPassword": "Xxxx1@3$"

        },         

3.       Cli reset works

azure vm reset-access -n "vmname" -g "RGName"  -u "new user id" -p "new password"

info:    Executing command vm reset-access

info:    Looking up the VM "vmname"

info:    Installing extension "VMAccessForLinux", VM: "vmname"

info:    vm reset-access command OK