Introduction to Fuse

FUSE (Filesystem in Userspace) is a simple interface for userspace programs to export a virtual filesystem to the Linux kernel. Fuse also aims to provide a secure method for non privileged users to create and mount their own filesystem implementations.

This package is known to build and work properly using an LFS-9.0 platform.

Package Information

Fuse Dependencies


Doxygen-1.8.16 (to rebuild the API documentation)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/fuse

Kernel Configuration

Enable the following options in the kernel configuration and recompile the kernel if necessary:

File systems  --->
  <*/M> FUSE (Filesystem in Userspace) support [CONFIG_FUSE_FS]

Installation of Fuse

Install Fuse by running the following commands:

sed -i '/^udev/,$ s/^/#/' util/meson.build &&

mkdir build &&
cd    build &&

meson --prefix=/usr .. &&

The API documentation is included in the package, but if you have Doxygen-1.8.16 installed and wish to rebuild it, issue:

doxygen doc/Doxyfile

This package does not come with a test suite.

Now, as the root user:

ninja install                                             &&

mv -vf   /usr/lib/libfuse3.so.3*     /lib                 &&
ln -sfvn ../../lib/libfuse3.so.3.6.2 /usr/lib/libfuse3.so &&

mv -vf /usr/bin/fusermount3  /bin         &&
mv -vf /usr/sbin/mount.fuse3 /sbin        &&
chmod u+s /bin/fusermount3                &&

install -v -m755 -d /usr/share/doc/fuse-3.6.2      &&
install -v -m644    ../doc/{README.NFS,kernel.txt} \
                    /usr/share/doc/fuse-3.6.2      &&
cp -Rv ../doc/html  /usr/share/doc/fuse-3.6.2      

Command Explanations

sed ... util/meson.build: This command disables the installation of a boot script and udev rule that are not needed.

mv ... libfuse3.so.3*; ln ... libfuse3.so: These commands install the libraries in the /lib directory.

Configuring fuse

Config Files

Some options regarding mount policy can be set in the file /etc/fuse.conf. To install the file run the following command as the root user:

cat > /etc/fuse.conf << "EOF"
# Set the maximum number of FUSE mounts allowed to non-root users.
# The default is 1000.
#mount_max = 1000

# Allow non-root users to specify the 'allow_other' or 'allow_root'
# mount options.

Additional information about the meaning of the configuration options are found in the man page.


Installed Programs: fusermount3, mount.fuse3
Installed Libraries: libfuse3.so
Installed Directory: /usr/include/fuse3 and /usr/share/doc/fuse-3.6.2

Short Descriptions


is a suid root program to mount and unmount Fuse filesystems.


is the command mount calls to mount a Fuse filesystem.


contains the FUSE API functions.

Last updated on 2019-08-17 15:16:30 -0700