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Split-WindowsImage

Last Updated: 3/8/2017

SYNOPSIS

Splits an existing .wim file into multiple read-only split .wim files.

SYNTAX

Split-WindowsImage -ImagePath <String> -SplitImagePath <String> -FileSize <UInt64> [-CheckIntegrity]
 [-LogPath <String>] [-ScratchDirectory <String>] [-LogLevel <LogLevel>] [<CommonParameters>]

DESCRIPTION

The Split-WindowsImage cmdlet creates the .swm files in the specified directory, naming each file the same as the specified path_to_swm, but with an appended number. For example, if you set path_to_swm as c:\Data.swm, this option creates a Data.swm file, a Data2.swm file, a Data3.swm file, and so on, defining each portion of the split .wim file and saving it to the C:\ directory.

If a single file is larger than the value specified in the FileSize parameter, one of the split .swm files that results will be larger than the value specified in the FileSize parameter, in order to accommodate the large file.

This cmdlet does not apply to virtual hard disk (VHD) files.

EXAMPLES

Example 1: Split a .wim file

PS C:\> Split-WindowsImage -ImagePath "c:\imagestore\install.wim" -SplitImagePath "c:\imagestore\splitfiles\split.swm" -FileSize 1024 -CheckIntegrity

This command uses the image from c:\imagestore\install.wim to create a split.swm file, a split2.swm file, a split3.swm file, and so on, defining each portion of the split .wim file with a maximum size of 1024 MB and saving it to the C:\ imagestore\splitfiles\ directory.

PARAMETERS

-CheckIntegrity

Detects and tracks .wim file corruption when used with the Add-WindowsImage, Dismount-WindowsImage, or Save-WindowsImage cmdlet. CheckIntegrity stops the operation if DISM detects that the .wim file is corrupted when used with the Expand-WindowsImage or Mount-WindowsImage cmdlet.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-FileSize

Specifies the maximum size in megabytes (MB) for each created .swm file.

Type: UInt64
Parameter Sets: (All)
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-ImagePath

Specifies the location of a WIM file.

Type: String
Parameter Sets: (All)
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-LogLevel

Specifies the maximum output level shown in the logs. The default log level is 3. The accepted values are as follows:

  • 1 = Errors only
  • 2 = Errors and warnings
  • 3 = Errors, warnings, and information
  • 4 = All of the information listed previously, plus debug output
Type: LogLevel
Parameter Sets: (All)
Aliases: LL
Accepted values: Errors, Warnings, WarningsInfo

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-LogPath

Specifies the full path and file name to log to. If not set, the default is %WINDIR%\Logs\Dism\dism.log. In Windows PE, the default directory is the RAMDISK scratch space which can be as low as 32 MB. The log file will automatically be archived. The archived log file will be saved with .bak appended to the file name and a new log file will be generated. Each time the log file is archived the .bak file will be overwritten. When using a network share that is not joined to a domain, use the net use command together with domain credentials to set access permissions before you set the log path for the DISM log.

Type: String
Parameter Sets: (All)
Aliases: LP

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-ScratchDirectory

Specifies a temporary directory that will be used when extracting files for use during servicing. The directory must exist locally. If not specified, the \Windows\%Temp% directory will be used, with a subdirectory name of a randomly generated hexadecimal value for each run of DISM. Items in the scratch directory are deleted after each operation. You should not use a network share location as a scratch directory to expand a package (.cab or .msu file) for installation. The directory used for extracting files for temporary usage during servicing should be a local directory.

Type: String
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-SplitImagePath

Specifies the location and the base split image file name.

Type: String
Parameter Sets: (All)
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

INPUTS

System.String[]

Microsoft.Dism.Commands.ImageObject

Microsoft.Dism.Commands.ImageObjectWithState

OUTPUTS

Microsoft.Dism.Commands.OfflineImageObject

NOTES

Add-WindowsImage

Dismount-WindowsImage

Expand-WindowsImage

Export-WindowsImage

Get-WindowsImage

Mount-WindowsImage

New-WindowsImage

Repair-WindowsImage

Remove-WindowsImage

Save-WindowsImage

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