You could do block device snapshotting today if you build your block devices on top of LVM. You can also somewhat do it with fsfreeze and remounting your mount

You could do block device snapshotting today if you build your block devices on top of LVM. You can also somewhat do it with fsfreeze and remounting your mount point on top of a dm-snapshot target. Blksnap is better because it does not require setup in advance like LVM, and it does not require interrupting any live users like fsfreeze. It "should" just work with the live block device within the WSL distro. LWN covered the v1 posting, which is a good start: https://lwn.net/Articles/914031/ https://lwn.net/Articles/914031/ This is all somewhat future-looking, and if you only want file-level snapshotting instead of block-level, it's probably easier to try and get btrfs/bcachefs/nilfs2 instead. My WSL2 on Windows 11 shows btrfs present inside /proc/filesystems.