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-8.3 platform.

Package Information

Fuse Dependencies


Doxygen-1.8.14 (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-1.8.14 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.3.2.5 /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-3.2.5      &&
install -v -m644    ../doc/{README.NFS,kernel.txt} \
                    /usr/share/doc/fuse-3.2.5      &&
cp -Rv ../doc/html  /usr/share/doc/fuse-3.2.5      

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.

unzip ...: This uncompresses the installed man pages to be consistent with the rest of the man pages.

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-3.2.5

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 2018-08-22 15:18:51 -0700