Re: [docs] BUG - Optimize WSL2 VHDX file using DiskPart

["Antonin Godard" <antonin.godard@bootlin.com>]

Hi Johannes,

On Wed Oct 23, 2024 at 6:03 PM CEST, Johannes Deivard wrote:
> Hi,
>
> I would like to report that one crucial step is missing in the instructions "2b. Optimize your VHDX file using DiskPart<https://docs.yoctoproject.org/dev-manual/start.html?highlight=wsl2#:~:text=2b.%20Optimize%20your%20VHDX%20file%20using%20DiskPart%3A>".
>
> The attached vdisk must be detached before diskpart is exitted, or you wont be able to start WSL2 again since the VHDX file "is being used by another process."
>
> The instructions for this subsection should be as follows (detach vdisk instruction added before exit):
>
> C:\WINDOWS\system32> wsl --shutdown
> C:\WINDOWS\system32> diskpart
>
> DISKPART> select vdisk file="<path_to_VHDX_file>"
> DISKPART> attach vdisk readonly
> DISKPART> compact vdisk
> DISKPART> detach vdisk
> DISKPART> exit
>
> Best regards,
> Johannes Deivard

Thank you for reporting this.

Although I haven't been able to reproduce the problem you describe (on a Windows
VM with a sample vhdx file), I've had no issue running "detach vdisk" before
running "exit", and I think it is indeed a better practice anyway.

Would you be able to add that line to the documentation? You can see
instructions on how to do that at the following link:
https://git.yoctoproject.org/yocto-docs/tree/README

Cheers,
Antonin

--
Antonin Godard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com