What is Windows PE?
Windows Preinstallation Environment (Windows PE) 2.0 is a minimalWin32 operating system with limited services, built on theWindows Vista kernel. It is used to prepare a computer for Windowsinstallation, to copy disk images from a network file server, and toinitiate Windows Setup.
Windows PE is not designed to be theprimary operating system on a computer, but is instead used as astandalone preinstallation environment and as an integral component ofother setup and recovery technologies, such as Setup for Windows Vista,Windows Deployment Services (Windows DS), the Systems Management Server(SMS) Operating System (OS) Deployment Feature Pack, and the WindowsRecovery Environment (Windows RE).
This topic includes:
- Benefits of Windows PE
- Common Windows PE Scenarios
- Windows PE Limitations
- Windows PE Dependencies
- Supported Drivers
- Technologies Related to Windows PE
Benefits of Windows PEWindows PEwas created to help original equipment manufacturers (OEMs) andcorporations boot a computer with no functioning operating system. Inthe past, OEMs and corporations often used an MS-DOS-based boot floppydisk to start a computer, and then either to:
- Connect to a network share where a Windows installation source or disk image was located.
- Troubleshoot and recover a copy of Windows that did not start.
However,an MS-DOS-based boot floppy disk has a number of limitations that makeit awkward to use for preinstalling Windows or recovering existinginstallations or data:
- No support for the NTFS file system.
- No native networking support.
- No support for 32-bit (or 64-bit) Windows device drivers, making it necessary to locate 16-bit drivers.
- Rudimentary support for custom applications and scripts.
Thelimitations of MS-DOS-based boot disks led Microsoft to developWindows PE, which is Microsoft’s primary tool for booting computerswith no functional operating system. Once you boot a computer intoWindows PE, you can prepare a computer for Windows installation andthen initiate Windows Setup from a network or a local source.Otherwise, you can service an existing copy of Windows or recover data.
BecauseWindows PE is based on the kernel for Windows Vista, it overcomes thelimitations of MS-DOS-based boot disks by providing the followingcapabilities:
- Native support for NTFS 5.x file systems, including dynamic volume creation and management.
- Native support for TCP/IP networking and file sharing (client only).
- Native support for 32-bit (or 64-bit) Windows device drivers.
- Native support for a subset of the Win32 Application ProgrammingInterface (API); optional support for Windows ManagementInstrumentation (WMI) and Windows Script Host (Windows SH).
- Can be started from different kinds of media, including CDs, DVDs, USBflash devices (UFD), and Windows Deployment Services (Windows DS).
Note | This section discusses the standalone version of Windows PE. Customizedversions of Windows PE that are used in other products and Windowstechnologies (such as Windows DS) may provide different functionality.For more information about using Windows PE in these environments,consult the relevant product documentation. |
Common Windows PE ScenariosWindows PEis a modified version of the Windows operating system that is designedto support installing Windows and troubleshooting and recovering aninstallation that can no longer boot.
- Installing Windows Vista.Windows PE runs every time you install Windows Vista. The graphicaltools that collect configuration information during the setup phase arerunning within Windows PE. In addition, information technology (IT)departments can customize and extend Windows PE to meet their uniquedeployment needs. Windows PE also provides support for servicingWindows images.
Important | Windows PE supports the deployment of previous versions of Windows.Refer to your licensing agreement for restrictions or contact yourMicrosoft representative. |
- Troubleshooting.Windows PE is useful for both automatic and manual troubleshooting. Forexample, if Windows Vista fails to start because of a corrupted systemfile, Windows PE can automatically start and launch the WindowsRecovery Environment (Windows RE). You can also manually startWindows PE to use built-in or customized troubleshooting and diagnostictools.
- Recovery. OEMs and independentsoftware vendors (ISVs) can use Windows PE to build customized,automated solutions for recovering and rebuilding computers runningWindows Vista. For example, users can start their computers fromWindows PE recovery CDs or recovery partitions to automaticallyreformat their hard disks and to reinstall Windows Vista with theoriginal drivers, settings, and applications.
Windows PE LimitationsWindows PE is a subset of Windows Vista, and has the following limitations:
- To reduce its size, Windows PE includes only a subset of the availableWin32 application programming interfaces (APIs). I/O (disk and network)and core Win32 APIs are included.
- To prevent its use as a pirated operating system, Windows PEautomatically stops running the shell and reboots after 72 hours ofcontinuous use. This time period is not configurable.
- Windows PE cannot act as a file server or terminal server. (Remote Desktop is unsupported.)
- Distributed File System (DFS) name resolution is supported for standalone roots only. Domain roots are not supported.
- The tested methods of gaining network connectivity to file servers areTCP/IP and NetBIOS over TCP/IP. Other methods, such as the IPX/SPXnetwork protocol, are not supported.
- All changes that you make to the Windows PE registry while runningWindows PE are lost the next time you restart the computer. To makepermanent registry changes, you must edit the registry offline beforestarting Windows PE.
- Drive letters are assigned in consecutive order as you createpartitions in Windows PE. However, the drive letters are reset to thedefault order when you restart Windows PE.
- Windows PE does not support the Microsoft .NET Framework or the Common Language Runtime (CLR).
- Windows PE does not include the “Windows on Windows 32” (WOW32),“Windows on Windows 64” (WOW64), Virtual DOS Machine (VDM), OS/2 orPOSIX subsystems.
- To install a 64-bit version of Windows you must use a 64-bit version ofWindows PE. Likewise, to install a 32-bit version of Windows, you mustuse a 32-bit version of Windows PE.
- Windows PE can be used to configure and to partition a computer's disksbefore starting Windows Setup. If any hard disks are converted todynamic disks with Diskpart.exe before you start Windows Setup, thenthose hard disks are recognized as "foreign" when the operating systemis installed, and any volumes on those hard disks will not beaccessible.
- Windows PE does not support applications packaged with Windows Installer (.msi).
- WIM File System Filter (WIM FS Filter) driver is not supported in Windows PE.
Windows PE DependenciesWindows PE depends on a number of Windows technologies to function properly.
- If you use Windows PE on a network, DHCP and DNS servers are useful, but not required.
- If you boot Windows PE from the network, you must use a Windows DS server.
- If you install Windows, you must run Windows Setup (Setup.exe in Windows Vista or Winnt32.exe for Windows Server 2003).
- If you automate Windows Vista installation, you must use an Unattend.xml answer file.
Supported DriversWindows PE 2.0 supports the following drivers:
1394.inf
acpi.inf
adp94xx.inf
adpahci.inf
adpu160m.inf
adpu320.inf
agp.inf
apps.inf
arc.inf
arcsas.inf
battery.inf
brmfcmf.inf
brmfcsto.inf
brmfcumd.inf
brmfport.inf
bthpan.inf
bthspp.inf
cdrom.inf
cpu.inf
dc21x4vm.inf
defltbase.inf
defltwk.inf
disk.inf
djsvs.inf
dshowext.inf
dwup.inf
elxstor.inf
errata.inf
fdc.inf
flpydisk.inf
fontsetup.inf
hal.inf
hdaudbus.inf
hidbth.inf
hiddigi.inf
hidserv.inf
hpcisss.inf
i2omp.inf
iastorv.inf
iirsp.inf
iirsp2.inf
input.inf
ipmidrv.inf
iscsi.inf
iteatapi.inf
iteraid.inf
keyboard.inf
lsi_fc.inf
lsi_sas.inf
lsi_scsi.inf
machine.inf
mchgr.inf
megasas.inf
megasas2.inf
mf.inf
mraid35x.inf
mraid35x2.inf
mshdc.inf
msmouse.inf
msports.inf
net44x32.inf
net8185.inf
netathr.inf
netb57vx.inf
netbc6.inf
netclass.inf
nete1e32.inf
nete1g32.inf
netefe32.inf
netip6.inf
netirda.inf
netloop.inf
netmscli.inf
netmyk01.inf
netnb.inf
netnvm32.inf
netrasa.inf
netrass.inf
netrast.inf
netrtl32.inf
netrtx32.inf
netsis.inf
nettcpip.inf
nettun.inf
netuli6x.inf
netvgx86.inf
netvt86.inf
nfrd960.inf
ntrigdigi.inf
nvraid.inf
pcmcia.inf
puwk.inf
ql2300.inf
ql40xx.inf
ql40xx2.inf
ramdisk.inf
sbp2.inf
sceregvl.inf
scsidev.inf
secrecs.inf
sisraid2.inf
sisraid4.inf
symc8xx.inf
sym_hi.inf
sym_u3.inf
tape.inf
tdibth.inf
tpm.inf
ts_generic.inf
ts_wpdmtp.inf
uliahci.inf
ulsata.inf
ulsata2.inf
umbus.inf
unknown.inf
usb.inf
usbport.inf
usbprint.inf
usbstor.inf
volsnap.inf
volume.inf
vsmraid.inf
wd.inf
Technologies Related to Windows PEWindows PEis closely related to a number of other Windows installationtechnologies, as well as several recovery technologies. Some of thesetechnologies, such as Windows DS and Setup for Windows Vista, includecustomized versions of Windows PE.
Windows SetupTobe faster and more efficient, Windows Setup uses Windows image (.wim)files to install Windows on a hard drive. Setup uses a customizedversion of Windows PE to start the computer and to copy Windows to thehard drive from .wim files.
Unattended SetupUnattendedSetup is a method of automating clean installations and upgrades withminimal administrator or technician interaction. It relies on an answerfile that you create and can be performed from the Windows product DVDor from a shared distribution folder.
Unattended Setup is particularly useful if you need to:
- Perform automated installations on computers that have heterogeneous hardware configurations.
- Perform automated installations on specific types of servers, such asdomain controllers, remote access servers, and servers that runCertificate Services or the Cluster service.
- Configure a wide range of operating system settings during an automated installation without using batch files and scripts.
Inaddition to these deployment solutions, unattended Setup is a usefulmethod of creating master installations for image-based and RISinstallations.
A common method to initiate an unattended Setup isto boot the computer by using Windows PE, and then launch Setup with ananswer file from a distribution folder on the network.
[ 本帖最后由 ~DeatHMooN~ 于 29-1-2009 06:09 编辑 ] |