Setup Mpd In Fnos Linux

fnos is based on Debian Linux, so no big deal to set up this mpd music player daemon, just sudo apt install mpd to install and do the following configurations.

Important configurations

Two configuration files:

/etc/mpd.conf
~/.config/mpd/mpd.conf

I chose the first one as it is system wide, good for NAS haha. Some items need to look up:

music_directory “/var/lib/mpd/music”
playlist_directory “/var/lib/mpd/playlists”
db_file “/var/lib/mpd/tag_cache”
#log_file “/var/log/mpd/mpd.log”
state_file “/var/lib/mpd/state”
sticker_file “/var/lib/mpd/sticker.sql”
user “mpd”
#group “nogroup”
bind_to_address “localhost” ## For network
#bind_to_address “/run/mpd/socket” ## And for Unix Socket
#port “6600”

And an example of an ALSA output:

#
#audio_output {
#	type		"alsa"
#	name		"My ALSA Device"
##	device		"hw:0,0"	# optional
##	mixer_type      "hardware"	# optional
##	mixer_device	"default"	# optional
##	mixer_control	"PCM"		# optional
##	mixer_index	"0"		# optional
#}

Set up music directory

$ ls -l /var/lib/mpd
total 8
drwxr-xr-x 2 root root  4096 Apr  9  2023 music
drwxr-xr-x 2 mpd  audio 4096 Apr  9  2023 playlists

As the music files are already stored in the NAS, so I wanna create a soft link instead of moving all music files into /var/lib/mpd/music.

$ sudo rmdir /var/lib/mpd/music # remove it
$ sudo ln -s /vol2/1000/music /var/lib/mpd/music # create soft link

$ sudo rmdir /var/lib/mpd/playlists/
$ sudo ln -s /vol2/1000/music/playlist /var/lib/mpd/playlists

Then check it again
$ ls -l /var/lib/mpd
total 4
lrwxrwxrwx 1 root root    16 Jun 20 21:47 music -> /vol2/1000/music
drwxr-xr-x 2 mpd  audio 4096 Apr  9  2023 playlists

Allow remote access

Change the default value of bind_to_address from localhost to as below:

bind_to_address “0.0.0.0”

Also need to add firewall rules to allow accessing the default port 6600

Configure alsa for USB DAC

I chose ALSA for output thus need to install one package:

sudo apt install alsa-utils

Then commands below would be available for figuring out USB DAC

$ sudo lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 13d3:3621 IMC Networks Wireless_Device
Bus 003 Device 017: ID 30be:0106 Schiit Audio I'm Fulla Schiit
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ sudo aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Schiit [I'm Fulla Schiit], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC897 Analog [ALC897 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ sudo aplay --list-pcm
null
    Discard all samples (playback) or generate zero samples (capture)
default
    Default Audio Device
sysdefault
    Default Audio Device
hw:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    Direct hardware device without any conversions
plughw:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    Hardware device with all software conversions
default:CARD=Schiit
    I'm Fulla Schiit, USB Audio
    Default Audio Device
sysdefault:CARD=Schiit
    I'm Fulla Schiit, USB Audio
    Default Audio Device
front:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    Front output / input
surround21:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Schiit,DEV=0
    I'm Fulla Schiit, USB Audio
    Direct sample mixing device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=7
    HDA Intel PCH, HDMI 1
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=8
    HDA Intel PCH, HDMI 2
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=9
    HDA Intel PCH, HDMI 3
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=7
    HDA Intel PCH, HDMI 1
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=8
    HDA Intel PCH, HDMI 2
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=9
    HDA Intel PCH, HDMI 3
    Hardware device with all software conversions
default:CARD=PCH
    HDA Intel PCH, ALC897 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, ALC897 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    Front output / input
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=PCH,DEV=0
    HDA Intel PCH, HDMI 0
    HDMI Audio Output
hdmi:CARD=PCH,DEV=1
    HDA Intel PCH, HDMI 1
    HDMI Audio Output
hdmi:CARD=PCH,DEV=2
    HDA Intel PCH, HDMI 2
    HDMI Audio Output
hdmi:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 3
    HDMI Audio Output
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC897 Analog
    Direct sample mixing device
dmix:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Direct sample mixing device
dmix:CARD=PCH,DEV=7
    HDA Intel PCH, HDMI 1
    Direct sample mixing device
dmix:CARD=PCH,DEV=8
    HDA Intel PCH, HDMI 2
    Direct sample mixing device
dmix:CARD=PCH,DEV=9
    HDA Intel PCH, HDMI 3
    Direct sample mixing device

So as you can see from above output, my USB DAC is hw:CARD=Schiit,DEV=0, thus to set ALSA output configuration as below:

audio_output {
       type            "alsa"
       name            "I'm Fulla Schiit"
       device          "hw:0,0"        # optional
      mixer_type      "hardware"      # optional
      mixer_device    "default"       # optional
      mixer_control   "PCM"           # optional
      mixer_index     "0"             # optional
}

For mixer_control, check output of command sudo alsamixer while it confirms the answer if “PCM”.

Create missing files

$ sudo touch /var/lib/mpd/tag_cache
$ sudo touch /var/lib/mpd/state
$ sudo chown mpd:audio /var/lib/mpd/state
$ sudo chown mpd:audio /var/lib/mpd/tag_cache
$ ls -l /var/lib/mpd
total 96
lrwxrwxrwx 1 root root     16 Jun 20 21:47 music -> /vol2/1000/music
drwxr-xr-x 2 mpd  audio  4096 Apr  9  2023 playlists
-rw-r--r-- 1 mpd  audio   191 Jun 21 20:44 state
-rw-r--r-- 1 mpd  audio 12288 Jun 21 20:40 sticker.sql
-rw-r--r-- 1 mpd  audio 77160 Jun 21 20:42 tag_cache

Finally it’s time to start MPD Service as below:

$ sudo systemctl enable mpd.service
$ sudo systemctl start mpd.service
$ sudo systemctl status mpd.service
● mpd.service - Music Player Daemon
     Loaded: loaded (/lib/systemd/system/mpd.service; enabled; preset: enabled)
     Active: active (running) since Sun 2026-06-21 20:44:09 CST; 6s ago
TriggeredBy: ○ mpd.socket
       Docs: man:mpd(1)
             man:mpd.conf(5)
             file:///usr/share/doc/mpd/html/user.html
   Main PID: 354482 (mpd)
      Tasks: 3 (limit: 9124)
     Memory: 19.1M
        CPU: 138ms
     CGroup: /system.slice/mpd.service
             └─354482 /usr/bin/mpd --systemd

Till now everything seems fine, let’s do a final check with the client, see if you can get the music out.

sudo apt install mpc # install command line client

$ mpc update
Updating DB (#1) ...
volume:  0%   repeat: off   random: off   single: off   consume: off

$ mpc stats
Artists:    425
Albums:     174
Songs:     2099

Play Time:    0 days, 0:00:00
Uptime:       0 days, 0:07:41
DB Updated:   Sun Jun 21 20:50:30 2026
DB Play Time: 28 days, 14:47:20

$ mpc listall # list all music files in the database
$ mpc add "王菲合集/王菲《天空》 K2HD日本首批限量版[低速原抓WAV+分轨]/01  天空.wav" # add one music into the queue
$ mpc play
$ mpc status
王菲合集/王菲《天空》 K2HD日本首批限量版[低速原抓WAV+分轨]/01  天空.wav
[playing] #1/1   0:19/4:24 (7%)
volume:  0%   repeat: off   random: off   single: off   consume: off