Prepare your OS image for layering in Nutanix 编辑

This topic explains how to prepare a clean OS image for import into a new OS layer. Before you start, make sure that you meet the requirements. While preparing the image, you can Expedite a Microsoft Ngen.exe operation, if necessary, if you think it is taking too long.

If using Windows 10 and not running PVS, machine creation, or View, you can speed up desktop start times by removing Windows 10 built-in applications. However, we recommend removing the apps on a new version of the OS layer, not in the OS image itself.

Note:

Do not use an unattend file in Nutanix. The App Layering software removes the unattend file if it is present, because it is not necessary or recommended in Nutanix.

Install the OS on a virtual machine

As part of this procedure, you can set up Key Management Service (KMS) activation.

Note: Publishing images into environments where both KMS and Active Directory-based activation(ADBA) are being used at the same time causes problems with activation.

1. Log into the Prism Console.
2. Select Task > VM, and switch to Table View to see the existing virtual machines.
3. Click +Create VM in the upper right corner, and enter the specifics about the new virtual machine:
   1. Enter a Name and add a Description.
   2. Select the number of VCPUs.
   3. Set the Cores per CPU.
   4. Set Memory.
   5. Select Disks, and create a virtual machine with three disks. The first CD-ROM is the ISO for the OS. The second CD-ROM is for the Nutanix VIRTIO drivers that allow the Nutanix virtual machine to access the disk where you install the OS. One CD-ROM is assigned in the beginning.
      1. Edit the values for the assigned CD-ROM:
      2. For Operation, select Clone from ADSF file.
      3. For Bus Type, select IDE.

      4. Enter the path to your Windows ISO. The path is the combination of the Storage Container and the ISO Name. For example:

         /ISOStore/en_windows_10_enterprise_version_1511_x64_dvd_7224901.iso

      5. Click Update.
   6. Add another disk by clicking the +Add New Disk button:
      1. Set the Type to CDROM.
      2. Set the Operation to Clone from ADSF file.
      3. Set the Bus Type to IDE

      4. Enter the path to the Windows VIRTIO Drivers. For example:

         /ISOStore/virtio-win-0.1.102.iso

      5. Click Add.
   7. Click the +Add New Disk button.
      1. Set the Type to Disk.
      2. Set the Operation to Allocate on Container.
      3. Set the Bus Type to SCSI.
      4. Select the Container you want to use.
      5. Enter the Size.
      6. Click Add.
   8. Click +Add new Nic, and enter the VLAN Name.
   9. Click Save.
4. Power on the virtual machine.
   1. Select Tasks > VM.
   2. Switch to the Table View to see existing virtual machines.
   3. Select the virtual machine in the Table, and click Power On.
5. Launch the console by selecting the VM and clicking Launch Console. When the VM boots it begins to install the Windows OS from the ISO disk. When the VM boots, it begins to install the Windows OS from the ISO disk.
   1. When asked, “Where do you want to install Windows?” notice that even though you added a disk in the VM creation wizard, there is no disk.
   2. Select the Load Driver option, and select Browse.
   3. Select the CD with the virtio-win-0.1.1 drivers.
   4. Select the vioscsi folder, and choose the folder for your Windows OS.
6. After the OS is installed manually install the VirtIO drivers:
   1. Launch Device Manager.
   2. Select Other Devices, right-click Ethernet Controller and choose Update Driver Software.
   3. Browse My Computer, and choose the VirtIO CD. The Ethernet drivers are stored in the NetKVM folder.
7. Server OS: If you need a session host feature:
   1. Select Add roles and features.
   2. For the Installation Type select Feature-based installation.
   3. For the Server Role, select Remote Desktop Services > Remote Desktop Session Host.
   4. Complete the process of adding server roles.
8. Install all important updates. Restart the system and check for more updates. Some updates only become available after others are installed.
9. Install all required service packs.
10. Install all required hot fixes: Windows Server 2008 R@ SP1 and Windows 7: Install KB2550978 for PVS
11. Disable Windows System Restore and Windows Automatic Updates.
12. Enable built-in administrator and check Password never expires.

13. If using Key Management Service (KMS) licensing, run a command window as Administrator, and enter these commands:

    slmgr /skms <kmsserverhost>
    slmgr /rearm
    reboot
    slmgr /ipk XXXX-YOUR-KMS-KEY-XXXX
    slmgr /ato
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