Contents
Installed Programs:
fusermount3 and mount.fuse3
Installed Libraries:
libfuse3.so
Installed Directory:
/usr/include/fuse3 and /usr/share/doc/fuse-3.16.2
Fuse-3.16.2
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.
![[Note]](../images/note.png)
Note
Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.
Package Information
Download (HTTP): https://github.com/libfuse/libfuse/releases/download/fuse-3.16.2/fuse-3.16.2.tar.gz
Download MD5 sum: b00bf08b27ead4a9411578777e94a1cc
Download size: 14 MB
Estimated disk space required: 222 MB (with tests and documentation)
Estimated build time: 0.2 SBU (add 0.3 SBU for tests)
Fuse Dependencies
Optional
Doxygen-1.9.8 (to rebuild the API documentation), pytest-7.4.3 (required for tests), and looseversion (for tests)
Kernel Configuration
Enable the following options in the kernel configuration and recompile the kernel if necessary:
File systems ---> <*/M> FUSE (Filesystem in Userspace) support [FUSE_FS]
Character devices in userspace should be enabled too for running the tests:
File systems ---> <*/M> FUSE (Filesystem in Userspace) support [FUSE_FS] <*/M> Character device in Userspace support [CUSE]
Installation of Fuse
Install Fuse by running the following commands:
sed -i '/^udev/,$ s/^/#/' util/meson.build && mkdir build && cd build && meson setup --prefix=/usr --buildtype=release .. && ninja
The API documentation is included in the package, but if you have Doxygen-1.9.8 installed and wish to rebuild it, issue:
pushd .. && doxygen doc/Doxyfile && popd
To test the results, issue the following commands (as the root user):
python3 -m venv --system-site-packages testenv && source testenv/bin/activate && pip3 install looseversion && python3 -m pytest && deactivate
The pytest-7.4.3 Python
module is required for the tests. One test named
test_cuse will fail if the
CONFIG_CUSE configuration item was not enabled
when the kernel was built. One test,
test/util.py, will output a warning due to the usage
of an unknown mark in pytest.
One test named
test_notify_inval_entry[True-expire_entries]
may fail under certain circumstances.
Now, as the root user:
ninja install &&
chmod u+s /usr/bin/fusermount3 &&
cd .. &&
cp -Rv doc/html -T /usr/share/doc/fuse-3.16.2 &&
install -v -m644 doc/{README.NFS,kernel.txt} \
/usr/share/doc/fuse-3.16.2Command Explanations
sed ... util/meson.build: This command disables the installation of a boot script and udev rule that are not needed.
--buildtype=release: Specify a buildtype
suitable for stable releases of the package, as the default may
produce unoptimized binaries.
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.
#
#user_allow_other
EOFAdditional information about the meaning of the configuration options are found in the man page.