HiFiBerry Setup (Raspbian Jessie Lite, Kernel 4.4)

config.txt

# For more options and information see
# http://www.raspberrypi.org/documentation/configuration/config-txt.md
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable mmap support in the bcm2708-i2s driver
dtoverlay=i2s-mmap

# Enable HiFiBerry module
dtoverlay=hifiberry-dacplus

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

hifiberry-setup.sh

# Tested on a Raspberry Pi 3 running Raspbian Jessie Lite (2016-05-27, kernel 4.4)
# – https://www.hifiberry.com/guides/configuring-linux-3-18-x/

# update boot config (complete file included in this gist)
# 1. add "dtoverlay=i2s-mmap"
# 2. add "dtoverlay=hifiberry-dacplus"
# 3. comment out: "dtparam=audio=on"
sudo vim /boot/config.txt

sudo reboot

# ensure the sound card is enabled (you should see a card: "sndrpihifiberry")
aplay -l

# further audio config for volume etc.
alsamixer

# install music player
sudo apt-get update
sudo apt-get install mplayer

# play music…
mplayer zarathustra.aac