techmentor 2012: deploying windows server 2012 server core
DESCRIPTION
Deploying Windows Server 2012 Core session delivered at TechMentor 2012 in Redmond, WA.TRANSCRIPT
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TechMentor 2012
Deploying Windows Server 2012: From Bare Metal, Server Core, Minimal Server Interface, and More Harold WongBlogs.technet.com/haroldwong@haroldwong
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Agenda
Deployment methods and what’s new in Windows Deployment Services (WDS)Windows Server 2012 Installation OptionsMinimal Server InterfaceMinimizing disk space using Features on Demand
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High Touch – Image Based Setup
Essentially the same as Windows Server 2008 R2 Setup
Existing scripts and deployment tools that you have for Windows Server 2008 R2 will work with Windows Server 2012Provides a single unified process with which all customers can install WindowsSpeed improvements
IBS Setup optionsUpgrade: Keep files, settings, and applicationsCustom: Install only
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Lite Touch
Microsoft Deployment Toolkit (MDT) 2012Step 1: Obtain the Required Software
http://go.microsoft.com/fwlink/?LinkId=76620
Step 2: Prepare the MDT EnvironmentStep 3: Configure MDT to Create the Reference ComputerStep 4: Deploy Windows Server 2012 and Capture an Image of the Reference ServerStep 5: Configure MDT to Deploy Windows Server 2012 to the Target ServerStep 6: Deploy the Captured Image of the Reference Server to the Target Server
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Windows Deployment Services (WDS)
End-to-end solution for clean installations over the network using PXE bootWhy use WDS?
Reliable – in use since 2006Proven – by external and internal customersScalable – can deploy over 300 machines at a timePowerful – flexible and extensibleSimple – improved manageability
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Standalone Mode
Standalone serverNew server configuration optionDecoupled from Active Directory
Local data storeWorks with management tools
MMC GUI snap-in and WDSUtil command line tool
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MMC Improvements
Device management now in the MMCClient Unattend file generatorNew server properties options
Max TFTP block sizeUDP port policy
Image priorityExpected Deployment Results wizard
See the results of your choices before you deployPresents the deployment options for a certain device Included in the MMC and also available from the command line
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Diagnose Your Deployments
Server trace log updatesETW-based logsSupport for /trace parameterSetuperr.log/Setupact.log still available
Performance countersProvides better understanding of what the server is “doing”Added many for Windows 8 – now over 50
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x86 UEFI and IPv6 PXE Support
UEFI 2.3.1 supportPXE extended to x86 UEFI architectureSeparate settings for BIOS and UEFI
IPv6 support for PXEUEFI requires firmware support in UNDI and UEFI version (2.3.1 or later) Requires stateful DHCPv6IPv6 is also supported in TFTP, multicast, WDS client, and setup.exe
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TFTP Download Enhancements
Dynamically determined variable-size transmission windowTripled performance on Gb networks from ~8 MB to ~20-30 MB per secondAccommodates clients with “small” NIC buffers
Shared UDP port allocationImproves scalability - Uses 16 ports by defaultAdds performance counters
Shared client bufferDetects clients downloading the same fileUses shared in-memory buffer of the file for all clientsReduces memory use and improves performanceAdds performance counters
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In-place WIM Multicast Apply
What it doesEliminates download of the WIM before applying to the local diskAllows the WIM to be decompressed on-the-fly as received over the network
Why it’s goodFaster process that uses a smaller disk footprint
What’s needed to use it?Minimum of 2 GB RAM
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VHDX Apply
What it doesApplies VHDX file directly to disk using sector-based deploymentMultiple-partition deployment for OS & recovery partition in single imageMust use VHDX format, not VHD
WDS does not create the VHDXAvailable for
WDSMCast.exe and WDSClient.exe
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Windows Server 2012 Deployment Options
Server CoreThe default deployment optionRSAT for remote GUI managementPowerShell support achieves critical mass with 2300+ cmdletsMore roles and features available
Server with a GUIEquivalent of full Server in Windows Server 2008 R2Provided for backwards compatibility
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Windows Server 2012 Configuration Levels
Server with a GUI
Minimal Server Interface
Server Core
NEW Full Server without Server Graphical Shell
• No Explorer, Internet Explorer or associated files
• MMC, Server Manager, and a subset of Control Panel applets are still installed
• Provides many of the benefits of Server Core for those applications or users that haven’t yet made the transition
Server Core• NEW Can move between Server Core and
Full Server by simply installing or uninstalling components
Classic “Full Server”• Full Metro-style GUI shell• Install Desktop Experience to run Metro-
style apps
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Transitioning between Server Core and Server
Server ManagerRemote only to go from Server Core to Server
PowerShell
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Transitioning with Server Manager: PS cmdlets
Full Server to Server Core
Server Core to Full Server
POWERSHELL
Uninstall-WindowsFeature Server-Gui-Mgmt-Infra -Restart
POWERSHELL
Install-WindowsFeature Server-Gui-Mgmt-Infra,Server-Gui-Shell -Restart
NEW Can install multiple features with one command by separating with commas
Single reboot required to restart all services
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TechMentor 2012
demo
Transitioning between Server Core and Server with a GUI
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Minimal Server Interface
It’s a Server with a GUI…
…but without Windows Explorer and Internet Explorer
Provides some of the benefits of Server Core for those products or admins that can’t fully make the transition to Server Core
Enables administrators and developers to begin shifting to support headless servers
Remove dependencies on Shell and Internet Explorer
Enable full remote management
Higher availability
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Converting to and from Server Graphical Shell
Server ManagerUninstall Server Graphical Shell:
Install Server Graphical Shell:
Server Core to Minimal Server Interface
POWERSHELL
Uninstall-WindowsFeature Server-Gui-Shell -Restart
POWERSHELL
Install-WindowsFeature Server-Gui-Shell -Restart
POWERSHELL
Install-WindowsFeature Server-Gui-Mgmt-Infra -Restart
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Limitations of the Minimal Server Interface (1/2)
Common Dialog box is functional (except networking)
Any UI with dependencies on items implemented as Shell Namespace Extensions will fail
Certain CPLs are namespace extensions, e.g. Networking
Internet Explorer is not available when Server Graphical Shell is uninstalled
Links in UI won’t workHelp isn’t available – calls to HTML Help API will return NULL!
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Limitations of the Minimal Server Interface (2/2)
Some file associations and protocol handlers brokenhttp://file://*.chm
Some DLL files not installedCheck for dependencies or delay loads might fail!
DUMPBIN (Windows SDK)Dependency Walker (http://www.dependencywalker.com, freeware)
Test your applications on the Minimal Server Interface!
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Detecting the state of Server Graphical Shell
Using the RegistryHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Server\ServerLevels
WMIWin32_ServerFeature class can be used to determine installed roles and features
http://msdn.microsoft.com/en-us/windows/cc280268Server-Gui-Shell has an ID of 99Server-Gui-Mgmt-Infra has an ID of 478
Server Core Minimal Server Interface
Server Graphical Shell
ServerCore = 1 Set Set Set
ServerGuiMgmt = 1
Not Set Set Set
ServerGuiShell = 1
Not Set Not Set Set
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Local Shell CapabilitiesServer Core Minimal Server
InterfaceServer with a GUI Desktop
Experience
Command Prompt a a a a
PowerShell/.NET a a a a
Server Manager x a a a
MMC x a a a
Control Panel x x a a
CPL Applets x Some a a
Explorer Shell x x a a
Taskbar x x a a
System Tray x x a a
Internet Explorer x x a a
Help x x a a
Themes x x x a
Start screen (Metro)
x x a a
Metro-style apps x x x a
Media Player x x x a
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TechMentor 2012
demo
Minimal Server Interface
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Reducing on Disk Footprint
All Roles and Features are copied to the Windows Side by Side store (\windows\winsxs) during Setup
Uses disk space to store roles and features that may never be installed
Windows Server 2012 now has Features on DemandAllows an administrator to remove unneeded roles and featuresFiles for removed roles and features are deleted from the Side by Side storeCan be used to minimize VHD footprint
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Server Core Installation Option
Server Core installation option is created using Features on Demand
Unsupported Roles and Features are removed from \windows\winsxs to maintain minimal footprintShow as Removed in PowerShell
Show as Payload Removed in Dism.exe
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Removing Roles and Features
Files for <FeatureName> will be deleted from the \windows\winsxs folder
Must use PowerShell, remove is not available in Server Manager
POWERSHELL
Uninstall-WindowsFeature <FeatureName> -Remove
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Sources for Removed Roles and Features
Reinstallation SourcesWindows Update
If server has Internet access, it can use WU
Use the WIM directlyMount WIM
Can mount the install WIM
Running Server’s \windows\winsxs folderLocation can be specified via Group Policy:
Computer Configuration > Administrative Templates > System > “Specify settings for optional component installation and component repair”
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Mounting the WIM
Create a folder to mount the WIM in:
Determine the index of Server with a GUI:
Mount the WIM:
Install role or feature:
CMD
mkdir c:\mountdir
CMD
dism /mount-wim /WimFile:<drive>:\sources\install.wim /Index:<#_from_step_2> /MountDir:c:\mountdir /readonly
CMD
Dism /get-wiminfo /wimfile:<drive>:sources\install.wim
POWERSHELL with mounted WIM
Install-WindowsFeature Server-Gui-Mgmt-Infra,Server-Gui-Shell –Restart –Source c:\mountdir\windows\winsxs
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Using the WIM Directly
Determine the index of Server with a GUI:
Install role or feature specifying a source of WIM:<path>:<#_from_step_1>
CMD
Dism /get-wiminfo /wimfile:<drive>:sources\install.wim
POWERSHELL
Install-WindowsFeature Server-Gui-Mgmt-Infra,Server-Gui-Shell –Restart –Source wim:<drive>:\sources\install.wim:4
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Reinstalling Roles and Features
Server ManagerPowerShell
POWERSHELL
Install-WindowsFeature <FeatureName> -Source <Source>
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Server Core Installation Option to Server
If Server Core was installed using Setup converting to Server requires a source
With a mounted WIM
Using the WIM directly
POWERSHELL with mounted WIM
Install-WindowsFeature Server-Gui-Mgmt-Infra,Server-Gui-Shell –Restart –Source c:\mountdir\windows\winsxs
POWERSHELL
Install-WindowsFeature Server-Gui-Mgmt-Infra,Server-Gui-Shell –Restart –Source wim:d:\sources\install.wim:4
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TechMentor 2012
demo
Reducing Disk Footprint with Features on Demand
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.NET 3.5 and Features on Demand
Not included in the Windows Server 2012 imageApplication Compatibility shim will prompt to install if running an application that requires .NET 3.5Installation sources
Windows UpdateInstall media \sources\sxs
Whitepaper on .NET 3.5 in Windows Server 2012http://msdn.microsoft.com/library/windows/hardware/hh975396
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Key Resources
Download Windows Server 2012 RC Bits …http://aka.ms/hwws2012
Download System Center 2012…http://aka.ms/hwsc2012
Free Training on Microsoft Virtual Academy … http://aka.ms/virtualacademy
Find me on Twitter … @haroldwong
Check out my Blog … http://blogs.technet.com/haroldwong
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