Hello,
The error code you are getting is a generic “Unspecified error” message from DISM. It is usually associated with task sequence failures, specifically when the task sequence environment is not properly initialized.
If you want to convert the hard disk from MBR to GPT using the DISKPART command, you need to make sure that your task sequence environment is properly initialized.
Here’s an example of how you can do this:
First, add a “Restart in Windows PE” task to your task sequence. This will ensure that your task sequence environment is properly initialized.
After the restart, add a “Run Command Line” task to run the DISKPART commands.
In the command line, type: cmd /c "echo select disk 0 > diskpart.txt && echo clean >> diskpart.txt && echo convert gpt >> diskpart.txt && diskpart /s diskpart.txt"
This command will select the first hard disk (disk 0), clean it (delete all partitions), and then convert it to GPT.
After the conversion, you can proceed with your usual tasks (e.g., applying the image, installing software, etc.).
Also, note that the “clean” command will delete all data on the disk, so make sure you have a backup if necessary.
Best Regards,
Hania Lian
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How to invoke the DISKPART.EXE/S command from MDT
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I want to convert the hard disk from MBR to GPT with the DISKPART command before deploying the system using MDT
But running the command line in the task sequence will return code "-2147467259 0x80004005"
The "1.txt" file has been copied to the PE system
Windows for business Windows Server User experience Other
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Anonymous
2024-01-26T07:13:49.8233333+00:00