![]() # Clean up the WinSxS component store and optimize the image with DISM Update-Tools -VM $TeplateVMName -NoReboot Invoke-VMScript -ScriptType PowerShell -ScriptText "Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -AutoReboot" -VM $TeplateVMName -GuestCredential $Cred | Out-file -Filepath C:\temp\Update.log -Append WSUS settings in a virtual machine are stored in the registry instead of deploying through a GPO. It is supposed that the VM is located in a virtual network where it can get an IP address from a DHCP server. DUPLICATE WINDOWS VMWARE INSTALL# Run the command to install all available updates in the guest OS using VMWare Tools (the update installation log is saved to a file: C:\temp\Update.log) $Pwd = Get-Content c:\Scripts\VMWare\vm_admin_passfile.txt | ConvertTo-SecureString $Ĭred = new-object -typename -argumentlist $adminname, $Pwd DUPLICATE WINDOWS VMWARE PASSWORD# Get an administrator credentials from an encrypted file (if you do not want to keep the password in the PS script in clear text) Start-VM -VM $TeplateVMName | Get-VMQuestion | Set-VMQuestion -DefaultOption -Confirm:$false Set-Template -Template $TeplateVMName -ToVM -Confirm:$false –RunAsync Import-Module -ErrorAction Silentl圜ontinue The PowerCLI script below will help you to automatically convert a VMWare template into a VM and install security updates from WSUS: Running PowerShell scripts must be allowed in the guest OS by the script execution policy. We assume that the VMWare tools, PowerShell version 4 (or newer), and the PSWindowsUpdate module are installed in the virtual machine template. You can use PowerCLI to install updates to a Windows virtual machine. DUPLICATE WINDOWS VMWARE MACApply the new MAC address allocation scheme to an existing virtual machine in its Virtual Hardware settings.For VMWare virtual machines, you won’t be able to directly use the methods of integrating updates into a Windows image that are used for stand-alone images or distros. ![]() ![]() Prefix-based allocation is suitable for deployments of a larger scale.įor globally unique MAC addresses, the OUI must be registered in IEEE. For example, 02:12:34:01:YY:ZZ for vCenter Server A, 02:12:34:02:YY:ZZ for vCenter Server B, and so on. ![]() This structure results in 255 address clusters, each cluster managed by a vCenter Server instance, and in about 65000 MAC addresses per vCenter Server. ![]() You can use the fourth octet XX to distribute the OUI address space between the vCenter Server instances. For example, for a 02:12:34 locally administered address range, MAC addresses have the form 02:12:34:XX:YY:ZZ. The VMware OUI allocation works with up to 64 vCenter Server instances and is suitable for small scale deployments. To change the vCenter Server ID, configure the vCenter Server unique ID option in the Runtime Settings section from the General settings of the vCenter Server instance and restart it. Where 00:50:56 represents the VMware OUI, XX is calculated as (80 vCenter Server ID), and YY:ZZ is a random number. According to this scheme, a MAC address has the following format: 00:50:56:XX:YY:ZZ You can keep using the VMware OUI allocation scheme if your deployment contains a small number of vCenter Server instances. Only virtual machines created or network adapters added after the change receive addresses according to the new scheme.įor information about MAC address allocation schemes and setup, see the vSphere Networking documentation. VCenter Server instance ID or switching to a different allocation scheme does not resolve MAC address conflicts in existing virtual machines. ![]()
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