Get the WSL2-modified Linux kernel and OpenZFS source code:
git submodule update --init --recursive --progressShould already be set to the correct tags. Verify and checkout fitting versions if necessary!
/bin/bash build.shKernel will be 3rdparty/WSL2-Linux-Kernel/arch/x86/boot/bzImage
.deb files are created as 3rdparty/zfs/*.deb
Install your newly built kernel by copying it to Windows:
# Create a directory on "Windows" path to store the kernel
mkdir -p /mnt/c/wsl2_zfs
# Copy the Kernel file
cp 3rdparty/WSL2-Linux-Kernel/arch/x86/boot/bzImage /mnt/c/wsl2_zfs/kernel
Also install the comand line utilites:
sudo dpkg -i 3rdparty/zfs/zfs_*_amd64.deb 3rdparty/zfs/lib*.deb
In your Windows 10 environment, create or edit %userprofile%/.wslconfig and have it point to your kernel file. Copy and rename if necessary.
[wsl2]
kernel=c:\\wsl2_zfs\\kernel
localhostForwarding=true
swap=0
Start a PowerShell with administrator privileges, stop your WSL instances and restart LxssManager
wsl --shutdown
Restart-Service LxssManager
In your WSL2 environment, you should now be able to run
sudo zfs versionand get appropriate version information about ZFS.
To actually use it, check your drive paths from Powershell
wmic diskdrive list brief
and mount (bare) to your distribution (e.g. Ubuntu or whatever, but that's optional)
wsl --mount \\.\PHYSICALDRIVE1 --bare [-d Ubuntu-20.04]
You can see that drive in Linux
lsblk