Diskpart.exe is a command interpretation in text mode.ProgramIt enables you to manage objects (disks, partitions, or volumes) by using scripts or directly entering them from a command prompt ). Before using the diskpart.exe command on a disk, partition, or volume, you must first list and select the objects to focus on. When an object has focus, any diskpart.exe command you type will apply to this object.
ExploitationList Disk,List volumeAndList PartitionCommand to list available objects and determine the object number or drive letter.List DiskAndList volumeCommand to display all disks and volumes on the computer. WhileList PartitionThe command only displays partitions on the disk with focus. UseListCommand, an asterisk (*) appears next to the object with focus (*). You can select an object by number or drive letter, for example, disk 0, partition 1, Volume 3, or volume C.
When an object is selected, the focus remains on that object until different objects are selected. For example, if you set focus on disk 0 and select volume 8 on Disk 2, the focus is shifted from disk 0 to volume 8 on Disk 2. Some commands automatically change the focus. For example, if a new partition is created, the focus is automatically transferred to the new partition.
You can only set the focus on the partitions on the selected disk. When a partition has focus, the related volume (if any) also has focus. When a volume has focus, if the volume is mapped to a specific partition, the related disk and partition also have focus. Otherwise, the focus on the disk and volume is lost.
Diskpart command
To view the command syntax, click the following command:
Active
On the Basic disk, mark the partition with focus as active. This notifies the Basic Input/Output System (BiOS) or extensible firmware interface (EFI) that the partition or volume is a valid system partition or system volume.
Only partitions can be marked as active.
Key Points
Active
Add Disk
Mirror a simple volume with focus to a specified disk.
Syntax
Add disk = N[ Noerr]
Parameters
Assign
Assign a drive letter or mount point to a volume with focus. If no drive letter or mount point is specified, the next available drive letter is assigned. If the drive letter or mount point is already in use, an error occurs.
UseAssignCommand to change the drive letter associated with a removable drive.
You cannot assign drive letter to system volumes, boot volumes, or volumes that contain page files. In addition, you cannot allocate drive letter to the guid Partition Table (GPT) partition of the original device manufacturer (OEM) partition or any non-basic msdata partition.
Syntax
Assign[{ Letter = D| Mount = Path}] [ Noerr]
Parameters
Break Disk
It is only applicable to dynamic disks. The image volumes with focus are divided into two simple volumes. One simple volume retains the drive letter and all the mount points of the mirror volume, and the other simple volume receives the focus, so that one drive letter can be assigned to it.
By default, the content of the image volume is retained. Each part is a simple volume. ExploitationNokeepParameter. Only half of the image can be reserved as a simple volume, and the other half can be deleted and converted to available space. Both volumes do not receive the focus.
Syntax
Break disk = N[ Nokeep] [ Noerr]
Parameters
Clean
Delete any partition or volume format from a disk with focus. On the master startup record (MBR) disk, only the MBR partition information and hidden sector information are overwritten. On the guid Partition Table (GPT) disk, overwrite the GPT partition information, including protective MBR. Hidden sector information does not exist.
Syntax
Set All
Parameters
Convert basic
Convert a blank Dynamic Disk to a basic disk.
Syntax
Convert basic[Noerr]
Parameters
Convert dynamic
Convert a basic disk to a dynamic disk.
Syntax
Convert dynamic[Noerr]
Parameters
Convert GPT
On an itanium-based computer, convert a blank basic disk with a master startup record (MBR) Partition style to a basic disk with a guid Partition Table (GPT) Partition style.
Key Points
Convert GPT[Noerr]
Parameters
Convert MBR
On an itanium-based computer, convert a blank basic disk with a guid Partition Table (GPT) Partition style to a basic disk with a primary startup record (MBR) Partition style.
Key Points
Convert MBR[Noerr]
Parameters
Create partition EFI
On an itanium-based computer, create a system partition for the extended firmware interface (EFI) on the guid Partition Table (GPT) disk. After a partition is created, the focus is shifted to the new partition.
Syntax
Create partition EFI[ Size = N] [ Offset= N] [ Noerr]
Parameters
Create partition extended
Create an extended partition on the current drive. After a partition is created, the focus is automatically transferred to the new partition. Only one extended partition can be created on each disk. This command fails if you try to create an extended partition in another extended partition. You must create an extended partition before creating a logical drive.
Syntax
Create partition extended[ Size = N] [ Offset = N] [ Noerr]
Parameters
Create partition logical
Create a logical drive in the extended partition. After a partition is created, the focus is automatically transferred to the new logical drive.
Syntax
Create partition logical[ Size = N] [ Offset = N] [ Noerr]
Parameters
Create partition MSR
On an itanium-based computer, create a Microsoft retain (MSR) partition on the guid Partition Table (GPT) disk.
Be careful
Windows XP 64-bit Edition Do not load Microsoft reserved partitions. You cannot store or delete data on them.
Create volume simple
Create a simple volume. After a new volume is created, the focus is automatically transferred to the new volume.
Syntax
Create volume simple[ Size = N] [ Disk = N] [ Noerr]
Parameters
Create volume stripe
Create a striped volume on the specified disk. After a new volume is created, the focus is automatically transferred to the new volume.
Syntax
Create volume stripe[ Size = N] [ Disk = N[,[ N, Role] [ Noerr]
Parameters
Delete Disk
Delete a lost Dynamic Disk from the disk list.
Syntax
Delete Disk[Noerr] [Override]
Parameters
Delete Partition
Delete partitions with focus on each basic disk. You cannot delete system partitions, boot partitions, or any partitions that contain active page files or fault dump (memory dump.
Be careful
Partitions can be deleted from a dynamic disk, but cannot be created. For example, you can delete the unrecognized guid Partition Table (GPT) partition on the dynamic GPT disk. Deleting such a partition will not make the resulting idle space available. This command is specially used when it cannot be used.CleanReclaim the damaged offline dynamic disk space in case of an emergency during command execution.
Syntax
Delete Partition[Noerr] [Override]
Parameters
Delete volume
Delete the selected volume. You cannot delete system volumes, boot volumes, or any volumes that contain active page files or Failover (memory dump.
Syntax
Delete volume[Noerr]
Parameters
Detail Disk
Displays the attributes of the selected disk and Its volumes.
Syntax
Detail Disk
Detail volume
Displays the disk that stores the current volume.
Syntax
Detail volume
Exit
ExitDiskpartCommand Interpreter.
Syntax
Exit
Extend
Expand the volume with focus to the nearest unallocated space. For basic volumes, unallocated space must be on the same disk and then (the sector offset is greater than) Partitions with focus. Dynamic simple volumes or cross-zone volumes can be expanded to an empty space on any dynamic disk. Use this command to expand an existing volume to a new space.
If the partition was previously formatted using the NTFS file system, the file system will automatically expand to occupy a larger partition. No data is lost. If the partition was previously formatted using a non-NTFS file system format, this command fails without any changes to the partition.
Cannot expand the current system or start the partition.
Syntax
Extend[Size =N] [Disk =N] [Noerr]
Parameters
Help
Displays a list of available commands.
Syntax
Help
Import
Import the external disk group to the disk group of the local computer.ImportCommand import is the same as that of a disk with a focus.
Syntax
Import[Noerr]
Parameters
List Disk
Displays the disk list and the list of disk information, such as the size, available space, whether the disk is a basic disk or a dynamic disk, and whether the disk uses the master startup record (MBR) or GUID Partition Table (GPT) partition style. A disk marked with an asterisk (*) has a focus.
Syntax
List Disk
List Partition
Displays the partitions listed in the Partition Table of the current partition. On a dynamic disk, these partitions may not correspond to dynamic volumes on the disk. The reason for this deviation is that the dynamic disk contains items in the Partition Table of the current system volume or startup volume on the disk and a partition that occupies the remaining disk space for the dynamic volume.
Syntax
List Partition
List volume
Displays the list of basic and dynamic volumes on all disks.
Syntax
List volume
Online
Bring offline disks or volumes with focus online.
Syntax
Online[Noerr]
Parameters
Rem
Provides a method to add comments to a script.
Syntax
Rem
Example
Rem these commands set up 3 drives.
Create partition primary size = 2048
Assign D:
Create partition extend
Create partition logical size = 2048
Assign E:
Create partition logical
Assign F:
Remove
Delete the drive letter or mount point from the volume with focus. IfAllTo delete all the current drive letter and mount point. If the drive letter or mount point is not specifiedDiskpartThe first drive letter or mount point it encounters will be deleted.
RemoveCommand to change the drive letter associated with the removable drive. The drive letter of the system volume, start volume, or page volume cannot be deleted. In addition, the drive letter of the following partition cannot be deleted: OEM partition, any GPT partition with an unrecognized guid, or any special, non-data GPT partition (for example, EFI system partition ).
Syntax
Remove[{ Letter = D| Mount = Path[ All]}] [ Noerr]
Parameters
Rescan
Find the new disk that has been added to the computer.
Syntax
Rescan
Retain
Prepare an existing dynamic simple volume for use as the start volume or system volume.
On an x86 computer, create a partition item in the master startup record (MBR) of a dynamic simple volume with focus. To create an MBR partition, the dynamic simple volume must start from the offset aligned by the cylindrical and its size is an integer of the cylindrical.
On an itanium-based computer, create a partition item in the guid Partition Table (GPT) on a dynamic simple volume with focus.
Note:
Retain
Select Disk
Select a disk and move the focus to the disk.
Syntax
Select disk =[ N]
Parameters
Select Partition
Select the specified partition and give it focus. If no partition is specified,SelectThe command will list the current partition with focus. UseList PartitionCommand to view the number of all partitions on the current disk.
SyntaxSelect partition =[{ N| D}]
Parameters
Select volume
Select a volume and move the focus to the volume. If no volume is specified,SelectThe command will list the current volume with focus. You can specify the volume by number, drive letter, or mount point path. On the Basic disk, selecting a volume also gives the corresponding partition focus. UseList volumeCommand to view the numbers of all volumes on the computer.
Syntax
Select volume =[{ N| D}]
Parameters
ExploitationDiskpartYou can create a script to automatically execute disk-related tasks (such as creating a volume or converting a disk to a dynamic disk. Deploy with "unattended installation" or sysprep (they do not support creating volumes not starting volumes) Windows To create scripts for these tasks.
To startDiskpartScript, enter:
Diskpart/s Scriptname.txt
Where,Scriptname.txtIs the name of the text file containing the script.
To redirectDiskpartFor the Script output of a file, type:
Diskpart/s Scriptname.txt>Logfile.txt
Where,Logfile.txtYesDiskpartName of the text file written to its output.
WhenDiskpartAt startup,DiskpartThe version and computer name are displayed at the command prompt. By default, ifDiskpartAn error occurred while trying to execute the script task,DiskpartIt stops processing the script and displays an error code (unlessNoerrParameters ). However,DiskpartErrors are always returned when syntax errors occur, regardless of whether or not they are used.NoerrParameters.NoerrParameters enable you to execute many useful tasks. For example, you can use a single script to delete all partitions on all disks, regardless of the number of disks.
The following table listsDiskpartError code:
| error | description |
|---|---|
| 0 | no error occurred. Run the entire script. |
| 1 | a fatal exception event occurs. Serious problems may occur. |
| 2 | The parameter specified for thediskpart command is incorrect. |
| 3 | diskpart cannot open the specified script or output file. |
| 4 | one of the tasks used by diskpart fails to be returned. |
| 5 | A command syntax error occurs. The script fails because the object is incorrectly selected or is invalid when used with this command. |
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