How much disk space is WSL using on Windows?
I found that you can go into Windows' Apps & Features and it will display disk usage for the WSL2 "Ubuntu", but this does not seem to include WSL Legacy or maybe it does since it seems to report more than I expect?
Best Answer
Determine Disk Usage From Linux
Using a tool like
ncdu
can make determining disk usage easy with a nice cli interface to it as well.Install ncdu
Running ncdu
So we do not get all of Windows' directories along for the ride we'll need to exclude the
/mnt
directory.Determining From Windows
Under Windows' Apps & Features it lists
Ubuntu
as taking up 1.92 GBncdu
reports 1.7 GiB (~1.82GB) which is pretty close to what Windows reports.WSL Legacy "Bash on Ubuntu on Linux"
I was not able to find how much room
Bash on Ubuntu on Linux
was occupying through Windows, but I was able to see how much it was using by runningncdu --exclude /mnt
.Related Research
What size does basic Bash/WSL subsystem on Windows occupy?
Why is `du` on WSL acting giving a directory size greater than machine memory?
https://askubuntu.com/questions/1042285/reduce-size-of-a-wsl-installation-ubuntu-18-on-windows-10