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0.1.25 Feb 14, 2019
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#145 in Filesystem

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MIT license


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GCSF is a virtual filesystem that allows users to mount their Google Drive account locally and interact with it as a regular disk partition. You can find out more in this paper

Update (April 2019): I am currently still using and maintaining this project but I have very little time to dedicate to it. As such, it might take a while before I get around to fixing known bugs / implementing feature requests / responding to open issues. Thank you for understanding and for expressing sustained interest in this project!


GCSF requires the stable branch of the Rust programming language, which can be installed following the instructions on rustup.rs. If you already have Rust installed, make sure that it is updated to the latest version (≥1.26):

$ rustup update stable


On Mac OSX, GCSF requires osxfuse and pkg-config:

$ brew update; brew install pkg-config; brew tap homebrew/cask; brew install --cask osxfuse


On Ubuntu, GCSF requires libfuse-dev, libssl-dev and pkg-config:

sudo apt-get install -y libfuse-dev libssl-dev pkg-config

Arch Linux

An AUR package is maintained by axionl: gcsf-git.


sudo zypper install -y fuse-devel fuse rust pkgconf-pkg-config

Other linux distros

Make sure you have pkg-config and the fuse library installed. These are usually found in the package repositories of major distributions.


Rust can be installed via the lang/rust port. You will need to install sysutils/fusefs-libs for the cairo install command to succeed.


Unfortunately, Windows is not supported at the time being. See issue #19.


After all requirements are met, GCSF can be installed using cargo:

$ cargo install gcsf

This will generate the gcsf binary in $HOME/.cargo/bin. Make sure that this directory is in your PATH variable: export PATH=$PATH:$HOME/.cargo/bin

Alternatively, you can download a release binary for your platform.


GCSF will attempt to create a configuration file in $XDG_CONFIG_HOME/gcsf/gcsf.toml, which is usually defined as $HOME/.config/gcsf/gcsf.toml. Credentials are stored in the same directory.


  1. Visit console.developers.google.com and create a new project
  2. Add the Google Drive API to the project
  3. Configure an OAuth consent screen. Verification should not be required. Should be external unless this project is something internal to your GSuite
  4. Configure an OAuth2.0 credential. Do not use WEB as the token type if adding gcsf to a headless server - you want to be using the urn:* URI (note: if using WEB, you'll need to set the accepted domains to include http://localhost:8081)
  5. Configure GCSF to use the new client_id, client_secret, and project_id. You should have all these values after creating the credential.
  6. Configure GCSF authorize_using_code=True if configuring for headless servers. If you do this, completing the OAuth flow in a different browser will provide you a code that you can give to GCSF.

Running gcsf login some_session_name at this point should show a URL with your client_id query parameter.


The first step is to log in to Drive and authorize the application. A name must be provided for the session:

$ gcsf login some_session_name
Please direct your browser to https://accounts.google.com/o/oauth2/[...] and follow the instructions displayed there.
Successfully logged in. Saved credentials to "$HOME/.config/gcsf/some_session_name"

You can also list all existing sessions:

$ gcsf list
        - personal
        - some_session_name
        - work

And then mount one (or more) of them:

$ gcsf mount /mnt/gcsf -s some_session_name
INFO  gcsf > Creating and populating file system...
INFO  gcsf > File system created.
INFO  gcsf > Mounting to /mnt/gcsf
INFO  gcsf > Mounted to /mnt/gcsf

You can now find the contents of your Drive account in /mnt/gcsf:


Using Ranger:

GCSF in Ranger

Or Thunar:

GCSF in Thunar


GCSF stands for "Google Conduce Sistem de Fișiere" which translated from Romanian is "Google Drive Filesystem". However GDFS already exists so it remains GCSF.


Could not mount to $mountpoint: Operation not permitted (os error 1)

This error occurs when user_allow_other is not set in /etc/fuse.conf or the file has improper permissions. Fix by running (as root):

# echo 'user_allow_other' >> /etc/fuse.conf
# chmod 644 /etc/fuse.conf
# sudo chown root:root /etc/fuse.conf


You installed the prebuilt binaries but couldn't run it. Fix by installing rust and building from source.


Contributions are welcome. Documentation available on docs.rs/gcsf. You can also help by reporting or fixing issues.


~551K SLoC