Introduction to BlueZ

The BlueZ package contains the Bluetooth protocol stack for Linux.

This package is known to build and work properly using an LFS-11.2 platform.

Package Information

Additional Downloads

BlueZ Dependencies


dbus-1.14.0, GLib-2.72.3, and libical-3.0.14


docutils-0.19 (to generate man pages)

User Notes:

Kernel Configuration

If you are building this package to use bluetooth devices (rather than as a build dependency), enable the following options in the kernel configuration, also the options below the next paragraph if you intend to run the tests, and recompile the kernel if necessary:

General Setup --->
  [*] Configure standard kernel features (expert users)               [CONFIG_EXPERT]
    [*] Enable timerfd() system call               [CONFIG_TIMERFD]
    [*] Enable eventfd() system call               [CONFIG_EVENTFD]

[*] Networking support --->                [CONFIG_NET]
  <*/M> Bluetooth subsystem support --->    [CONFIG_BT]
    <*/M> RFCOMM protocol support          [CONFIG_BT_RFCOMM]
    [*]   RFCOMM TTY support               [CONFIG_BT_RFCOMM_TTY]
    <*/M> BNEP protocol support            [CONFIG_BT_BNEP]
    [*]   Multicast filter support         [CONFIG_BT_BNEP_MC_FILTER]
    [*]   Protocol filter support          [CONFIG_BT_BNEP_PROTO_FILTER]
    <*/M> HIDP protocol support            [CONFIG_BT_HIDP]
        Bluetooth device drivers --->
          (Select the appropriate drivers for your Bluetooth hardware)

   <*/M> RF switch subsystem support ----   [CONFIG_RFKILL]

-*- Cryptographic API --->
   <*/M*> User-space cryptographic algorithm configuration         [CONFIG_CRYPTO_USER]
   <*/M*> User-space interface for hash algorithms                 [CONFIG_CRYPTO_USER_API_HASH]
   <*/M*> User-space interface for symmetric key cipher algorithms [CONFIG_CRYPTO_USER_API_SKCIPHER]
   <*/M*> MD5 digest algorithm                                     [CONFIG_CRYPTO_MD5]
   <*/M*> SHA1 digest algorithm                                    [CONFIG_CRYPTO_SHA1]

Security Options --->
  <*/M*> Diffie-Hellman operations on retained keys [CONFIG_KEY_DH_OPERATIONS]

Installation of BlueZ

Now, make some changes needed for SystemV systems:

patch -Np1 -i ../bluez-5.65-obexd_without_systemd-1.patch

Install BlueZ by running the following commands:

./configure --prefix=/usr         \
            --sysconfdir=/etc     \
            --localstatedir=/var  \
            --enable-library      \
            --disable-manpages    \
            --disable-systemd     &&

To test the results, issue: make check.

Now, as the root user:

make install &&
ln -svf ../libexec/bluetooth/bluetoothd /usr/sbin

Install the main configuration file as the root user:

install -v -dm755 /etc/bluetooth &&
install -v -m644 src/main.conf /etc/bluetooth/main.conf

If desired, install the API documentation as the root user:

install -v -dm755 /usr/share/doc/bluez-5.65 &&
install -v -m644 doc/*.txt /usr/share/doc/bluez-5.65

Command Explanations

--disable-manpages: This switch disables generating the manual pages because of the reliance on 'rst2man' in docutils. Remove this switch if you have docutils-0.19 installed and wish to generate the manual pages.

--enable-library: This switch enables building the BlueZ 4 compatibility library which is required by some applications.

--disable-systemd: This switch is needed because systemd is not part of LFS/BLFS. If you are using systemd, remove this switch.

ln -svf ../libexec/bluetooth/bluetoothd /usr/sbin: This command makes access to the bluetooth daemon more convenient.

Configuring BlueZ

Configuration Files

/etc/bluetooth/main.conf is installed automatically during the install. Additionally, there are three supplementary configuration files. /etc/sysconfig/bluetooth is installed as a part of the boot script below. In addition, you optionally can install the following, as the root user:

cat > /etc/bluetooth/rfcomm.conf << "EOF"
# Start rfcomm.conf
# Set up the RFCOMM configuration of the Bluetooth subsystem in the Linux kernel.
# Use one line per command
# See the rfcomm man page for options

# End of rfcomm.conf
cat > /etc/bluetooth/uart.conf << "EOF"
# Start uart.conf
# Attach serial devices via UART HCI to BlueZ stack
# Use one line per device
# See the hciattach man page for options

# End of uart.conf

Boot Script

To automatically start the bluetoothd daemon when the system is rebooted, install the /etc/rc.d/init.d/bluetooth bootscript from the blfs-bootscripts-20220722 package.

make install-bluetooth


Installed Programs: bluemoon, bluetoothctl, bluetoothd (symlink), btattach, btmon, hex2hcd, l2ping, l2test, mpris-proxy, and rctest
Installed Library:
Installed Directories: /etc/bluetooth, /usr/{include,libexec}/bluetooth, and /usr/share/doc/bluez-5.65

Short Descriptions


is a Bluemoon configuration utility


is the interactive Bluetooth control program


is the Bluetooth daemon


provides access to the Bluetooth subsystem monitor infrastructure for reading HCI traces


is used to convert a file needed by Broadcom devices to hcd (Broadcom bluetooth firmware) format


is used to send a L2CAP echo request to the Bluetooth MAC address given in dotted hex notation


is a L2CAP testing program


is used to test RFCOMM communications on the Bluetooth stack

contains the BlueZ 4 API functions