✎ soc:2009:dverkamp:notes:windows_pe

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=== Windows PE boot ===

== Test ==

Boot into a Windows PE operating system generated according to [[:winpe|these instructions]] via TFTP.

== DUT configuration ==

No physical disks present.  System configured to boot from NIC equipped with gPXE ROM.

== Environment configuration ==

TFTP server hosting WinPE files.  DHCP server providing network configuration and path to WinPE's ''\Boot\pxeboot.n12'' file.

== Result ==

Success is defined as reaching WinPE's ''X:\Windows\system32'' command prompt.

=== Detailed test procedure ===

== Prerequisites ==

  * Vista AIK (http://download.microsoft.com/download/8/6/d/86d6ba9c-98ff-444e-87ed-3e76772eb2a6/vista_6000.16386.061101-2205-LRMAIK_EN.img)
  * Windows "technician computer"
  * TFTP server (tftpd-hpa)
  * DHCP server (ISC DHCPD)

== AIK installation ==

The Vista AIK is distributed as an image of an ISO 9660 filesystem.  Mount it on a Linux machine or otherwise extract it.  (TODO: this step should be more detailed)

Run STARTCD.EXE from the CD image.  Select "Windows AIK Setup" and follow the defaults until installation is complete.

== WinPE setup ==

Run the Windows PE Tools Command Prompt (//Start → All Programs → Microsoft Windows AIK → Windows PE Tools Command Prompt//).  Note that administrative privilege is required for some of the following commands, so the command prompt must be run elevated (Right click -> //Run as administrator//) if using Vista with UAC.

Run the following commands in this command prompt:

  mkdir C:\Temp
  call copype.cmd x86 C:\Temp\Boot
  del /Q etfsboot.com
  move ISO\boot\boot.sdi boot.sdi
  rmdir /S /Q ISO
  imagex /mount winpe.wim 1 mount
  copy mount\Windows\Boot\PXE\pxeboot.n12 pxeboot.n12
  copy mount\Windows\Boot\PXE\bootmgr.exe bootmgr.exe
  copy mount\Windows\System32\bcdedit.exe bcdedit.exe
  imagex /unmount mount
  rmdir /Q mount
  bcdedit -createstore BCD
  set BCDEDIT=bcdedit -store BCD
  %BCDEDIT% -create {ramdiskoptions} -d "Ramdisk options"
  %BCDEDIT% -set {ramdiskoptions} ramdisksdidevice boot
  %BCDEDIT% -set {ramdiskoptions} ramdisksdipath \Boot\boot.sdi
  for /f "tokens=3" %i in ('%BCDEDIT% -create -d "Windows PE" -application osloader') do set GUID=%i
  %BCDEDIT% -set %GUID% systemroot \Windows
  %BCDEDIT% -set %GUID% detecthal Yes
  %BCDEDIT% -set %GUID% winpe Yes
  %BCDEDIT% -set %GUID% osdevice ramdisk=[boot]\Boot\winpe.wim,{ramdiskoptions}
  %BCDEDIT% -set %GUID% device ramdisk=[boot]\Boot\winpe.wim,{ramdiskoptions}
  %BCDEDIT% -create {bootmgr} -d "Windows Boot Manager"
  %BCDEDIT% -set {bootmgr} timeout 30
  %BCDEDIT% -set {bootmgr} displayorder %GUID%
  del /Q bcdedit.exe

Note that these commands cannot be directly entered into a batch file due to the extra % substition in the for loop.  (TODO: rewrite it so it works in a batch file)

== TFTP server setup ==

Copy ''C:\Temp\Boot'' to the TFTP server's directory, so that the files are in /Boot/*.  Preserve case on filenames when copying.

Configure the TFTP server to allow backslash as a directory separator (as in [[:tftp_backslash]]).  Ensure the TFTP server is restarted after the configuration change.

Add a DHCPD configuration file fragment to boot the Windows PE loader from the TFTP server:

  filename "\\Boot\\pxeboot.n12";
  next-server tftp.server.ip.here;

Boot from gPXE as usual; after some time, the Windows PE command prompt should appear.

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