Hello! I am not able to use bluetooth on Xfce4 desktop using bluetoothctl. Would you give more advises? I'v performed this: 1. added bluetooth to /etc/config.scm as Pierre Neidhardt posted https://lists.gnu.org/archive/html/help-guix/2018-10/msg00046.html 2. ran `guix pull && guix package -u` and then reconfigured system `guix system reconfigure /etc/config.scm` 3. rebooted and my try was not successful. 4. I edited to /etc/bluetooth/main.conf typing 'true' instead of 'false' (I remounted /gnu/store with rw for perform this without reconfiguring with guix command) 5. I rebooted but no result again: # herd status bluetooth Status of bluetooth:   It is started.   Running value is 698.   It is enabled.   Provides (bluetooth).   Requires (dbus-system udev).   Conflicts with ().   Will be respawned. # herd status dbus-system Status of dbus-system:   It is started.   Running value is 322.   It is enabled.   Provides (dbus-system).   Requires (user-processes).   Conflicts with ().   Will be respawned. # herd status udev Status of udev:   It is started.   Running value is 200.   It is enabled.   Provides (udev).   Requires (root-file-system).   Conflicts with ().   Will not be respawned. # rfkill list bluetooth 1: ideapad_bluetooth: Bluetooth     Soft blocked: yes     Hard blocked: no # rfkill unblock bluetooth # herd restart bluetooth Service bluetooth has been stopped. Service bluetooth has been started. # bluetoothctl Agent registered [bluetooth]# list [bluetooth]# [bluetooth]# select Missing ctrl argument [bluetooth]# devices No default controller available Cannot see bluetooth device. I do not know MAC-address. I cannot power on as described here Here say https://wiki.archlinux.org/index.php/Bluetooth#Pairing   `hciconfig hci0 up`cause I have no this tool. Please, how to deal with it?