Packer stuck at: "Gracefully halting virtual machine" and build gets failed stating time out.

[AshTechieDevOps]

Packer stuck at: "Gracefully halting virtual machine" and (shutdown_command = "%windir%\system32\sysprep\sysprep.exe /unattend:A:\Autounattend.xml /quiet /generalize /oobe /shutdown /mode:VM") never gets executed then finally packer build gets failed without creating build arctifacts stating timed out issue post "shutdown_timeout"+"winrm_timeout".

I am using latest version of Packer and Hyper-V as my hypervisor and I am successfully above to manully execute "%windir%\system32\sysprep\sysprep.exe /quiet /generalize /oobe /shutdown /mode:VM" but having issue with (shutdown_command = "%windir%\system32\sysprep\sysprep.exe /unattend:A:\Autounattend.xml /quiet /generalize /oobe /shutdown /mode:VM"). Any suggestions.

packer {
required_plugins {
hyperv = {
version = ">= 1.1.0"
source = "github.com/hashicorp/hyperv"
}
}
}

source "hyperv-iso" "autogenerated_1" {
iso_checksum = "sha256:6DAE072E7F78F4CCAB74A45341DE0D6E2D45C39BE25F1F5920A2AB4F51D7BCBB"
iso_url = "C:/AshImages/2019/17763.3650.221105-1748.rs5_release_svc_refresh_SERVER_EVAL_x64FRE_en-us.iso"
output_directory = "C:/CSG/2k19PackerBuild"
skip_export = true
use_fixed_vhd_format = true
vm_name = "windows2019-vhd-packer"
communicator = "none"
skip_compaction = true
winrm_timeout = "5m"
shutdown_timeout = "25m"
shutdown_command = "%windir%\system32\sysprep\sysprep.exe /unattend:A:\Autounattend.xml /quiet /generalize /oobe /shutdown /mode:VM"

floppy_files = [
"C:/CSG-DC/Autounattend.xml"
]

boot_command = [
"",
"",
"D:\setup.exe /unattend:A:\Autounattend.xml",
"",
]
}

build {
sources = ["hyperv-iso.autogenerated_1"]
}

[AshTechieDevOps]

Even no other command gets executed by shutdown_command during packer build.

[rahul-nits]

I was creating and deploying images using PackerBuild@1. I was also stuck once a couple of months back with the same issue, however, I was following standard packer build procedure i.e. creating a JSON file for packer having builder and provisioners.

Initially what I was doing is after my provisioner typed "PowerShell" execution i was executing the Sysprep command as you have written. When I included the "windows restart" type in packer JSON before executing the Sysprep cmd, it worked. I checked it by logging into the VM created to modify the Sysprep server needs restarts. That's where I included this block.

{ "type": "windows-restart", "restart_check_command": "powershell -command \"& {Write-Output 'Restarted.'}\"" }

I'm relatively new in Packer, so I thought to share with you guys my experience and workaround. Hope you get some idea from this article.

[saily]

Hi @AshTechieDevOps, pretty sure the issue is a non-successful sysprep process. Please double check the file C:\Windows\System32\Sysprep\Panther\*.log and look for Errors. Alternatively you can use the error-cleanup-provisioner which will allow you to grab the logfiles before the machine is being killed by packer.

See below:

error-cleanup-provisioner "powershell" {
    inline = [
        "Get-ChildItem -Path 'C:/Windows/System32/Sysprep/Panther' -Filter '*.log' | Get-Content",
    ]
    # elevated_user     = "<your-username>"
    # elevated_password = "<your-password>"
}

[saily]

this is most likely not a packer bug, so I'd recommend we close it here.