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Creating a custom Windows image

Creating a custom Windows image

You can create your own custom Windows-based image to import the custom image into IBM Cloud® Virtual Private Cloud. Then, you can use the custom image to deploy a virtual server or bare metal server in the IBM Cloud® Virtual Private Cloud infrastructure.

You can begin with an image template from the IBM Cloud Classic infrastructure. For more information, see Migrating a virtual server from the classic infrastructure. You can also create a custom image of a boot volume that is attached to a server at import time. For more information, see About creating an image from volume. Keep in mind that Windows custom images aren't supported for LinuxONE (s390x processor architecture).

All custom images must meet the following requirements：

  • Contain a single file or volume
  • Is in qcow2 or vhd format
  • Is cloud-init enabled or can be booted using ESXi kickstart
  • Size doesn't exceed 250 GB
  • The minimum size is 10 GB. For any image that is less than 10 GB, the size is rounded up to 10 GB.

You can't create an image from an encrypted boot volume (image from a volume) that is not 100 GB.

Use the following steps to create a Windows custom image to deploy in the IBM Cloud VPC infrastructure environment. The procedure encompasses the following high-level tasks.

  • Use VirtualBox to create a Windows image in VHD format.
  • Customize the image with virtIO drivers and Cloudbase-init.

Creating a Windows custom image

Virtio-win drivers must be installed. Microsoft recommends that you obtain the drivers from a licensed RHEL version 8 or 9 instance. Drivers that are obtained from Red Hat are certified by Microsoft. The minimum recommended Red Hat virtio-win package version is virtio-win-1.9.24. However, using the most recent package is best.

The Red Hat virtio-win-1.9.24 ISO contains the following specific driver versions.

100.84.104.19500 oem10.inf \vioprot.inf_amd64_af0659efdaba9e4b\vioprot.inf
100.90.104.21400 oem11.inf \viofs.inf_amd64_c6f785e21f3f6f80\viofs.inf
100.85.104.20200 oem12.inf \viogpudo.inf_amd64_b19dcf9947e73e5a\viogpudo.inf
100.85.104.19900 oem13.inf \vioinput.inf_amd64_4505a789e17b5f89\vioinput.inf
100.81.104.17500 oem14.inf \viorng.inf_amd64_ef304eab276a3e61\viorng.inf
100.85.104.19900 oem15.inf \vioser.inf_amd64_cb4783c018c10eba\vioser.inf
100.90.104.21500 oem2.inf  \vioscsi.inf_amd64_02a46a7a223648d1\vioscsi.inf
100.90.104.21500 oem3.inf  \viostor.inf_amd64_520417bbc533faba\viostor.inf
100.85.104.20700 oem4.inf  \balloon.inf_amd64_afa8c93081df5458\balloon.inf
100.90.104.21400 oem5.inf  \netkvm.inf_amd64_0efff05c07fcee39\netkvm.inf
100.85.104.19900 oem6.inf  \pvpanic.inf_amd64_b7028360ef636f8b\pvpanic.inf
10.0.0.21000     oem9.inf  \qxldod.inf_amd64_6199f9ecf2339133\qxldod.inf

Use the following steps to create a custom Windows image.

  1. You can download the evaluation version of Windows 2016, Windows 2019, or Windows 2022 operating system ISOs.

  2. Using the qemu-img utility, create a VHD image where you can install Windows. Download the qemu-img utility and extract it to your Windows laptop client. In the folder where you extracted the qemu-img utility, create the VHD image.

    qemu-img.exe create -f vpc Windows-2019.vhd 100G

    IBM Cloud® supports custom image import with VHD or qcow2. However, Virtual Box doesn't support the qcow2 format.

  3. Obtain the required virtio-win drivers by provisioning or accessing an existing RHEL server in IBM Cloud VPC.

    1. On your RHEL server in IBM Cloud VPC, install the virtio-win package by running the following command.

      yum install virtio-win

      In this example, the virtio-win package installs on RHEL version 8. Your returned output is similar to the following example.

      Installed:
  virtio-win-1.9.24-2.el8_5.noarch

    2. Access the virtio-win ISO in the /usr/share/virtio-win directory.

      cd /usr/share/virtio-win/

    3. Use a secure copy to copy the virtio-win ISO file, for example virtio-win-1.9.24.iso, to use for your Windows custom image.

    • Use winSCP to copy the ISO file on a Windows client.
    • Use SCP to copy the ISO file on a Linux or macOS client.

    1. Mount and open the ISO file.

    2. Copy all relevant virtio drivers from virtio-win.iso file for the respective operating system, put the drivers into a folder called Drivers, then copy the Drivers folder into the operating system ISO folder.

    3. Download the Windows Assessment and Deployment toolkit (ADK). To get the oscdimg.exe utility, install only the Deployment Tools.

    4. Create a bootable Windows ISO that incorporates all virtio drivers in the Drivers folder by using the oscdimg.exe command.

      C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\x86\Oscdimg> oscdimg -m -bC:\..\..\Downloads\<extracted_ISO_folder>\boot\etfsboot.com -u2 C:\..\..\Downloads\extracted_ISO_folder  C:\..\..\Downloads\win2019new.iso

  4. Use VirtualBox to create a virtual server with the VHD image that you created in step 2 using the bootable Windows ISO you created in Step 3. For more information, see Oracle VM VirtualBox User Manual.

    If you want to use a method other than VirtualBox to create the custom image, such as VMware, you must remove all drivers that are specific to that hypervisor from the custom image.

  5. In Storage settings, add the Windows installation bootable ISO that you created in Step 3.

  6. Start the server and begin the Windows installation.

  7. Select the Edition (Standard/Data Center) of the Operating System and Desktop Experience (with Desktop Experience or without Desktop Experience).

  8. Select Drive 0 and continue with the installation.

  9. When the installation is complete, shut down the virtual server and remove the installation ISO. You can ignore warnings about removing the installation ISO.

  10. Use the default Windows updater to download and install Windows updates. Repeat the process of downloading and installing updates until no updates are available.

Customizing a virtual server

Complete the following steps to customize the virtual server that you created by using Virtualbox.

  1. Install and configure cloudbase-init from Cloudbase-Init installation package

  2. Modify the cloudbase-init.conf file (C:\Program Files\Cloudbase Solutions\Cloudbase-Init\conf\cloudbase-init.conf) to match the following values. Don't remove any other content from the file.

    [DEFAULT]
#  "cloudbase-init.conf" is used for every boot
config_drive_types=vfat,iso
config_drive_locations=hdd,partition
activate_windows=true
kms_host=kms.adn.networklayer.com:1688
mtu_use_dhcp_config=false
real_time_clock_utc=false
bsdtar_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\bin\bsdtar.exe
mtools_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\bin\
debug=true
log_dir=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\log\
log_file=cloudbase-init.log
default_log_levels=comtypes=INFO,suds=INFO,iso8601=WARN,requests=WARN
local_scripts_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\LocalScripts\
metadata_services=cloudbaseinit.metadata.services.configdrive.ConfigDriveService,
# enabled plugins - executed in order
plugins=cloudbaseinit.plugins.common.mtu.MTUPlugin,
          cloudbaseinit.plugins.windows.ntpclient.NTPClientPlugin,
          cloudbaseinit.plugins.windows.licensing.WindowsLicensingPlugin,
          cloudbaseinit.plugins.windows.extendvolumes.ExtendVolumesPlugin,
          cloudbaseinit.plugins.common.userdata.UserDataPlugin,
          cloudbaseinit.plugins.common.localscripts.LocalScriptsPlugin

    If you plan to bring your own license for your custom image, remove the following lines from the cloudbase-init.conf file.

    activate_windows=true
kms_host=kms.adn.networklayer.com:1688

  3. Modify the cloudbase-init-unattend.conf file (C:\Program Files\Cloudbase Solutions\Cloudbase-Init\conf\cloudbase-init-unattend.conf) to match the following values. Don't remove any other content from the file.

    [DEFAULT]
#  "cloudbase-init-unattend.conf" is used during the Sysprep phase
username=Administrator
inject_user_password=true
first_logon_behaviour=no
config_drive_types=vfat
config_drive_locations=hdd
allow_reboot=false
stop_service_on_exit=false
mtu_use_dhcp_config=false
bsdtar_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\bin\bsdtar.exe
mtools_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\bin\
debug=true
log_dir=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\log\
log_file=cloudbase-init-unattend.log
default_log_levels=comtypes=INFO,suds=INFO,iso8601=WARN,requests=WARN
local_scripts_path=C:\Program Files\Cloudbase Solutions\Cloudbase-Init\LocalScripts\
metadata_services=cloudbaseinit.metadata.services.configdrive.ConfigDriveService,
# enabled plugins - executed in order
 plugins=cloudbaseinit.plugins.common.mtu.MTUPlugin,
          cloudbaseinit.plugins.common.sethostname.SetHostNamePlugin,
          cloudbaseinit.plugins.windows.createuser.CreateUserPlugin,
          cloudbaseinit.plugins.windows.extendvolumes.ExtendVolumesPlugin,
          cloudbaseinit.plugins.common.setuserpassword.SetUserPasswordPlugin,
          cloudbaseinit.plugins.common.localscripts.LocalScriptsPlugin

  4. Modify the Unattend.xml file (C:\Program Files\Cloudbase Solutions\Cloudbase-Init\conf\Unattend.xml) and set the PersistAllDeviceInstalls value to false.

  5. Run Sysprep by using the following command from the command prompt.

    C:\Windows\System32\Sysprep\Sysprep.exe /oobe /generalize /shutdown "/unattend:C:\Program Files\Cloudbase Solutions\Cloudbase-Init\conf\Unattend.xml"

  6. After you run sysprep, your virtual server shuts down. Then, you can continue with [Step 4 - Creating an image template of your customized virtual server](/docs/vpc?topic=vpc-migrate-vsi-to-vpc#migrate-new-image template)

Uploading a custom image

Use the following information to upload a custom image to IBM Cloud Object Storage.

On the Objects page of your IBM Cloud® Object Storage bucket, click Upload. You can use the Aspera high-speed transfer plug-in to upload images that are larger than 200 MB. For more information about uploading to IBM Cloud Object Storage, see Upload data.

Next steps

When your Windows custom image is created and available in IBM Cloud Object Storage, you can import the custom image into VPC and onboard a virtual server image for VPC. Make sure that you grant access to IBM Cloud Object Storage to import images.

If you plan to use a private catalog to manage your custom images, you must first import that image into IBM Cloud VPC, then onboard the image into a private catalog.

After the custom image is imported, you can use it to deploy a server in your IBM Cloud® Virtual Private Cloud infrastructure.

After you create a new virtual server from the imported image, stop and then start the virtual server before you access it:

  1. In IBM Cloud console, click Navigation menu menu icon > VPC Infrastructure VPC icon > Compute > Virtual server instances.
  2. On the Virtual server instances page, click Actions icon More Actions icon.