VHDX cannot be detached with full path

[dantmnf]

Windows Version

Microsoft Windows [Version 10.0.22621.2428]

WSL Version

2.0.9.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.133

Distro Version

N/A

Other Software

No response

Repro Steps

C:\>wsl --mount --vhd --bare E:\test\a.vhdx
The operation completed successfully.

C:\>wsl --unmount E:\test\a.vhdx
The system cannot find the file specified.
Error code: Wsl/Service/DetachDisk/ERROR_FILE_NOT_FOUND

C:\>cd /d E:\test

E:\test>wsl --unmount a.vhdx
The operation completed successfully.

Expected Behavior

The VHDX can be detached with either full path or relative path.

Actual Behavior

VHDX cannot be detached with full path.

Diagnostic Logs

No response

[benhillis]

Fixed with https://github.com/microsoft/WSL/releases/tag/2.0.12.

[conioh]

A workaround in case somebody can't get the update is to use \\?\path, e.g. wsl.exe --unmount \\?\E:\test\a.vhdx. For some reason this works.