drvfs support for \\?\

[Hawk777]

Is your feature request related to a problem? Please describe.
I’m trying to mount a volume shadow copy in Linux. It’s annoying that I currently have to use an old copy of dosdev that I found lying around the Internet to give it a drive letter, then mount the drive letter in Linux.

Describe the solution you'd like
I would like to be able to run either mount -t drvfs '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy15' /mnt/foo or mount -t drvfs '\\?\Volume{734851c5-4fc4-49f6-9632-7528f855a702}\' /mnt/foo in Linux. Other people presumably will have other uses for \\?\ unrelated to shadow copy.

[github-actions]

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If this a feature request, please reply with '/feature'. If this is a question, reply with '/question'.
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Invoke-WebRequest -UseBasicParsing "https://raw.githubusercontent.com/microsoft/WSL/master/diagnostics/collect-wsl-logs.ps1" -OutFile collect-wsl-logs.ps1
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[Hawk777]

/feature

[github-actions]

Diagnostic information

Found '/feature', adding tag 'feature'

[OneBlue]

@Hawk777: The best way to achieve this would to use wsl --mount, which can mount a block device directly into WSL (drvfs only allows mounting of mount points inside WSL, not block devices).