Image Builder hangs when building template with anything other than System Elevated powershell script/command

[brandonh-msft]

I'm using the base image Windows 11 + VS 2022 (Dev Box Compatible)

I've found that even if I tell it to execute a powershell command of just ls . it will hang if I select the Elevated without Run as System or uncheck both (User Context)

I end up having to run everything as System which causes problems for some tasks.

ARM template

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "name": {
            "defaultValue": "gh-53-repro",
            "type": "string"
        },
        "imageName": {
            "defaultValue": "gh-53-repro",
            "type": "string"
        },
        "location": {
            "defaultValue": "[resourceGroup().location]",
            "type": "string"
        },
        "imagePublisher": {
            "defaultValue": "microsoftvisualstudio",
            "type": "string"
        },
        "imageOffer": {
            "defaultValue": "visualstudioplustools",
            "type": "string"
        },
        "imageSku": {
            "defaultValue": "vs-2022-ent-general-win11-m365-gen2",
            "type": "string"
        },
        "version": {
            "defaultValue": "latest",
            "type": "string"
        },
        "vmSize": {
            "defaultValue": "Standard_B4ms",
            "type": "string"
        },
        "osDiskSizeGB": {
            "defaultValue": 128,
            "type": "int"
        },
        "userAssignedIdentities": {
            "defaultValue": [],
            "type": "array"
        },
        "managedImageResourceId": {
            "type": "string"
        },
        "userAssignedIdentityResourceId": {
            "type": "string"
        }
    },
    "variables": {},
    "resources": [
        {
            "type": "Microsoft.VirtualMachineImages/imageTemplates",
            "apiVersion": "2022-07-01",
            "dependsOn": [],
            "name": "[parameters('name')]",
            "location": "[parameters('location')]",
            "properties": {
                "vmProfile": {
                    "vmSize": "[parameters('vmSize')]",
                    "osDiskSizeGB": "[parameters('osDiskSizeGB')]",
                    "userAssignedIdentities": "[parameters('userAssignedIdentities')]"
                },
                "source": {
                    "type": "PlatformImage",
                    "publisher": "[parameters('imagePublisher')]",
                    "offer": "[parameters('imageOffer')]",
                    "sku": "[parameters('imageSku')]",
                    "version": "[parameters('version')]"
                },
                "distribute": [
                    {
                        "type": "ManagedImage",
                        "imageId": "[parameters('managedImageResourceId')]",
                        "location": "westus3",
                        "runOutputName": "runOutputManagedImage"
                    }
                ],
                "customize": [
                    {
                        "type": "PowerShell",
                        "name": "Elevated User Context",
                        "inline": [
                            "ls ."
                        ],
                        "runElevated": true,
                        "runAsSystem": false
                    },
                    {
                        "type": "PowerShell",
                        "name": "User Context",
                        "inline": [
                            "ls ."
                        ],
                        "runElevated": false,
                        "runAsSystem": false
                    }
                ]
            },
            "tags": {},
            "identity": {
                "type": "UserAssigned",
                "userAssignedIdentities": {
                    "[parameters('userAssignedIdentityResourceId')]": {}
                }
            }
        }
    ],
    "outputs": {}
}

[kgangulyvibe]

I can concur! It was so frustrating to have the builds fail even with some basic powershell commands. I was trying with various configurations but finally what had to be updated is that I had to run the customizations as System. Running as Elevated seems to have no purpose in that case.