Microsoft KB Archive/294773

= How To Access an EFI Partition in Windows XP 64-Bit Edition =

Article ID: 294773

Article Last Modified on 1/15/2006

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APPLIES TO


 * Microsoft Windows XP Professional for Itanium-based systems
 * Microsoft Windows Advanced Server, Limited Edition

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This article was previously published under Q294773



IN THIS TASK
SUMMARY
 * Access an EFI Partition
 * Available Mountvol Switches
 * Possible Values for VolumeName and Current Mount Points



SUMMARY
This article describes how to access an Extensible Firmware Interface (EFI) partition on IA64-based computer.

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Access an EFI Partition
 At a command prompt, type mountvol : /s, and then press ENTER. For example, type:

mountvol z: /s

 Type mountvol, and then press ENTER.

You should now be able to see and access the mounted EFI partition.

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Available Mountvol Switches
The following switches are available to create, delete, or list a volume mount point

mountvol [drive:]path VolumeName

mountvol [drive:]path /D

mountvol [drive:]path /L

mountvol drive: /S

where:
 *   specifies the existing the NTFS file system directory in which the mount point will reside.
 *   specifies the volume name that is the target of the mount point.
 * /D removes the volume mount point from the specified directory.
 * /L lists the mounted volume name for the specified directory.
 * /S mounts the EFI System Partition on the given drive.

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Possible Values for VolumeName and Current Mount Points
\\?\Volume{f7c6e0c0-b6d1-01c0-d931-f8428177d974}\

C:\

\\?\Volume{d53a4d81-22c4-11d5-bd86-806d6172696f}\

A:\

\\?\Volume{d53a4d80-22c4-11d5-bd86-806d6172696f}\

D:\

The EFI System Partition is mounted in the following location:

Z:\

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Keywords: kbhowtomaster KB294773

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