packer hangs when uninstalling virtualbox guest additions

[Ramesh Janjyam]

I was able to install guest additions, share folders but packer hangs when I try to uninstall guest additions as the last step. 

Here is my packer template 

{

"variables": {

"guest_additions_mode": "attach",

"headless": "false",

"short_name": "Win10Enterprise_x64",

"software_packages_path": "software_packages"

},

"builders": [{

"type": "virtualbox-ovf",

"source_path": "output/updated/{{ user `short_name` }}_updated.ovf",

"output_directory": "output/with_software/",

"vm_name": "{{ user `short_name` }}_with_software",

"vboxmanage": [

["modifyvm", "{{.Name}}", "--memory", "4096"],

["modifyvm", "{{.Name}}", "--vram", "48"],

["modifyvm", "{{.Name}}", "--cpus", "1"],

["sharedfolder", "add", "{{.Name}}", "--name", "software_packages", "--hostpath", "{{ user `software_packages_path` }}"]

],

"guest_additions_mode": "{{ user `guest_additions_mode` }}",

"headless": "{{ user `headless` }}",

"communicator": "winrm",

"winrm_username": "Administrator",

"winrm_password": "******",

"winrm_timeout": "12h",

"winrm_port": 5985,

"shutdown_command": "shutdown /s /t 10 /f /d p:4:1",

"post_shutdown_delay": "5m",

"floppy_dirs": ["scripts"]

}],

"provisioners": [{

"type": "powershell",

"script": "scripts/install_software_pkgs/install_oracle_guest_additions.ps1"

},

{

"type": "windows-restart",

"restart_timeout": "2h"

},

{

"type": "powershell",

"inline": "scripts/install_software_pkgs/uninstall_guest_additions.ps1"

},

{

"type": "windows-restart",

"restart_timeout": "2h"

}

]

}

here is the uninstall_guest_additions.ps1 script to uninstall guest additions. 

$path = $null

if (Test-Path "d:\VBoxWindowsAdditions.exe") {

  $path = "d:\VBoxWindowsAdditions.exe"

}

elseif (Test-Path "e:\VBoxWindowsAdditions.exe") {

  $path = "e:\VBoxWindowsAdditions.exe"

}

else{

 write-host "no guest additions drive found"

 exit

}

write-host "uninstalling guest additions"

& $path '/uninstall'

#Wait for 2 minutes to make sure that it is uninstalled successfully

write-host "wait for 2 minutes before exiting the script"

start-sleep -s 120

please help in understanding why it hangs and what is causing it to hang. 

[Alvaro Miranda Aguilera]

why you need to uninstall?

and if you know this script fails. can you run the script manually?

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Alvaro

[Ramesh Janjyam]

I am basically converting the final image to qcow2 format to put it on openstack. I can run manually but I want to automate this process and setup a ci/cd pipeline for generating the image. since this is going to be on openstack there is no need to leave the guest additions on the image. so wanted to delete it before preparing the image for openstack

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Alvaro

[Rickard von Essen]

Just skip installing guest additions since you don't need it.

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