As part of my workflow, I have a dual-boot system with Ubuntu 16.04 for development and Windows 10 for other work. I use WSL 1 for smaller linux tasks when I don't want to reboot into Ubuntu. As part of this, I use Zim for taking notes and I wish these to be accessible and editable from both native Ubuntu and WSL.
I have stored these notes in WSL's home directory which is accessible to Ubuntu through my mounted Windows system drive under Users\<user>\AppData\Local\Packages\CanonicalGroupLimited.Ubuntu16.04onWindows_79rhkp1fndgsc/LocalState/rootfs/. It is not advised to access these files in Windows because it erases their permissions, but I assumed accessing them from another Ubuntu instance should be OK. This works fine and my files are accessible from both OSes. But I am having an issue with file permissons. If it's relevant, I access this location through a symlink in my home directory on Ubuntu.
When I edit or add files from WSL, permissions work correctly and I am able to see and access them in native Ubuntu. But when I create or edit files in native Ubuntu, their permissions seem to be erased on WSL (ie. I have no permissions). I can then chmod these files in WSL, but it's frustrating to have to do this every time.
I have made sure users on both Ubuntu and WSL have the same name and password, as well as the same uid and gid (1000). I have noticed that the users are members of different groups. For example, my native Ubuntu user is a member of a group related to Docker, but I don't have this installed on WSL.
Are there any other system settings I need to ensure are the same between OSes to preserve file permissons?
Edit: I've eliminated it being as Zim-specific issue. Even creating a new file in Ubuntu using touch will result in it having no permissions back on WSL.