temporary script for samplerbox

samplerbox_script

#!/bin/bash -v
# CREATE A RASPBIAN JESSIE IMAGE
# SAMPLERBOX
#
# _______                        __              __                
#|     __|.---.-.--------.-----.|  |.-----.----.|  |--.-----.--.--.
#|__     ||  _  |        |  _  ||  ||  -__|   _||  _  |  _  |_   _|
#|_______||___._|__|__|__|   __||__||_____|__|  |_____|_____|__.__|
#                        |__|                                      
# needed: sudo apt-get update && sudo apt-get install -y cdebootstrap kpartx parted sshpass zip
# This script must be run on a Raspberry Pi
#
# nohup sudo ./samplerbox_maker.sh &

set -e

#############################
# 0 - Settings              #
#############################


image_name=samplerbox_20160831.img
image_size=1200
hostname=samplerbox
root_password=root
http=http://mirrordirector.raspbian.org/raspbian/

#################################
# 1 - Partitions                #
#################################

# Format partition
dd if=/dev/zero of=$image_name  bs=1M  count=$image_size
fdisk $image_name <<EOF
o
n



+64M
t
c
n




w
EOF

#Create the image file (with verbose)
kpartx -av $image_name

#Re-Read partition table
partprobe /dev/loop0

bootpart=/dev/mapper/loop0p1
rootpart=/dev/mapper/loop0p2

#Generate Boot (fat32) /Root (ext4) partitions on loop interface
mkdosfs -n BOOT $bootpart
mkfs.ext4 -L ROOT $rootpart
sync

#Display partition information (.img)
fdisk -l $image_name

##############################################################
# 2 - Generate Raspbian                                      # 
# This will takes some times...                              #
#  															 #
# This will copied raspbian inside the folder: sdcard        #
##############################################################

#Create directory ./sdcard
mkdir -v sdcard

#Mount Root partition as ./sdcard
mount -v -t ext4 -o sync $rootpart sdcard

#Create Raspbian Jessie system from scratch on ./sdcard
#(based on http://mirrordirector.raspbian.org/raspbian/)
cdebootstrap --arch=armhf jessie sdcard $http --include=locales --allow-unauthenticated

#Resync partitions
sync

######################
# 3 - Boot Partition #
######################

# Mount boot partition to ./sdcard/boot
mount -v -t vfat -o sync $bootpart sdcard/boot

###########################################
# 4 - APT-GET / System configuration      #
###########################################

# Add root and root password
echo root:$root_password | chroot sdcard chpasswd

# APT-GET gpg key
wget -O sdcard/raspberrypi.gpg.key http://archive.raspberrypi.org/debian/raspberrypi.gpg.key
chroot sdcard apt-key add raspberrypi.gpg.key
rm -v sdcard/raspberrypi.gpg.key
wget -O sdcard/raspbian.public.key http://mirrordirector.raspbian.org/raspbian.public.key
chroot sdcard apt-key add raspbian.public.key
rm -v sdcard/raspbian.public.key
chroot sdcard apt-key list

# APT-GET sources.list
sed -i sdcard/etc/apt/sources.list -e "s/main/main contrib non-free firmware/"
echo "deb http://archive.raspberrypi.org/debian/ jessie main" >> sdcard/etc/apt/sources.list


# Time zone
echo Etc/UTC > sdcard/etc/timezone

# Keyboard layout / locales
echo en_GB.UTF-8 UTF-8 > sdcard/etc/locale.gen
cp -v /etc/default/keyboard sdcard/etc/default/keyboard
chroot sdcard locale-gen LANG="en_GB.UTF-8"
chroot sdcard dpkg-reconfigure -f noninteractive locales


# Hostname
echo $hostname > sdcard/etc/hostname
echo "127.0.1.1 $hostname" >> sdcard/etc/hosts

########################
# 5 - Boot             #
########################

# Cmdline (disable console on TX/RX to use it for midi)
cat <<EOF > sdcard/boot/cmdline.txt
root=/dev/mmcblk0p2 ro rootwait console=tty1 selinux=0 plymouth.enable=0 smsc95xx.turbo_mode=N dwc_otg.lpm_enable=0 elevator=noop bcm2708.uart_clock=3000000
EOF

# Boot kernel configuration
cat <<EOF > sdcard/boot/config.txt
device_tree_param=i2c_arm=on
init_uart_clock=2441406
init_uart_baud=38400
gpu_mem=64
boot_delay=0
disable_splash=1
disable_audio_dither=1
EOF

# Automount usb
cat <<EOF > sdcard/etc/fstab
/dev/sda1       /media          auto    nofail            0       0
EOF
#/dev/sdb1       /media          auto    nofail            0       0

#######################
# 6- Network          #
#######################

# Network configuration (eth0 dhcp)
# "allow-hotplug" instead of "auto" very important to prevent blocking on boot if no network present
cat <<EOF > sdcard/etc/network/interfaces
auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet dhcp
EOF

#echo "timeout 10;" >> sdcard/etc/dhcp/dhclient.conf
#echo "retry 1;" >> sdcard/etc/dhcp/dhclient.conf

###########################
# 7 - Dependencies/Update #
###########################

# APT-GET update/upgrade
chroot sdcard apt-get update
chroot sdcard apt-get -y upgrade
chroot sdcard apt-get -y dist-upgrade

# Raspbian 
chroot sdcard apt-get -y install libraspberrypi0 libraspberrypi-bin libraspberrypi-dev raspberrypi-bootloader ssh wireless-tools wpasupplicant usbutils
chroot sdcard apt-get clean

# Python / Audio Dependencies
chroot sdcard apt-get -y install build-essential python-dev python-pip cython python-smbus python-numpy python-rpi.gpio python-serial portaudio19-dev alsa-utils git libportaudio2 libffi-dev
chroot sdcard apt-get clean
chroot sdcard apt-get autoremove -y

# SSH - Allowing root to log into $release with password... "
sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' sdcard/etc/ssh/sshd_config


#############################
# 8 - Samplerbox            #
#############################

# cffi / python-sounddevice / rt-midi / pyaudio / samplerbox
chroot sdcard sh -c "pip install cffi ; pip install sounddevice"
chroot sdcard sh -c "cd /root ; git clone https://github.com/superquadratic/rtmidi-python.git ; cd rtmidi-python ; python setup.py install ; cd .. ; git clone http://people.csail.mit.edu/hubert/git/pyaudio.git ; cd pyaudio ; python setup.py install ; cd .. ; git clone https://github.com/josephernest/SamplerBox.git ; cd SamplerBox ; python setup.py build_ext --inplace"

# Startup script
cat <<EOF > sdcard/root/SamplerBox/samplerbox.sh
#!/bin/sh
python /root/SamplerBox/samplerbox.py
EOF

chmod 777 sdcard/root/SamplerBox/samplerbox.sh

# Systemd startup configuration
cat <<EOF > sdcard/etc/systemd/system/samplerbox.service
[Unit]
Description=Starts SamplerBox
DefaultDependencies=false

[Service]
Type=simple
ExecStart=/root/SamplerBox/samplerbox.sh
WorkingDirectory=/root/SamplerBox/

[Install]
WantedBy=local-fs.target
EOF

# Enable systemd service
chroot sdcard systemctl enable /etc/systemd/system/samplerbox.service

# Terminal banner
cat <<EOF > sdcard/etc/motd

Welcome to SamplerBox!
######################
* The filesystem is read-only, see http://www.samplerbox.org/faq#readonly
  Here is how to remount as read-write:  mount -o remount,rw /
* The SamplerBox program (/root/SamplerBox/samplerbox.py) should be
  up and running. If not, try:  systemctl status samplerbox
######################

EOF

# Setup Alsa volume
sed -i 's/ENV{pvolume}:="-20dB"/ENV{pvolume}:="-10dB"/' sdcard/usr/share/alsa/init/default

# Samplerbox configuration modification
sed -i 's/USE_SERIALPORT_MIDI = False/USE_SERIALPORT_MIDI = True/' sdcard/root/SamplerBox/samplerbox.py
sed -i 's/USE_I2C_7SEGMENTDISPLAY = False/USE_I2C_7SEGMENTDISPLAY = True/' sdcard/root/SamplerBox/samplerbox.py
sed -i 's/USE_BUTTONS = False/USE_BUTTONS = True/' sdcard/root/SamplerBox/samplerbox.py
sed -i 's,SAMPLES_DIR = ".",SAMPLES_DIR = "/media/",' sdcard/root/SamplerBox/samplerbox.py


#######################
# 9 - /etc/modules    #
#######################

# Enable modules in /etc/modules
echo 'i2c-bcm2708' >> sdcard/etc/modules
echo 'i2c-dev' >> sdcard/etc/modules
echo 'snd_bcm2835' >> sdcard/etc/modules

# Sync partitions
sync

# Unmounting mount points
umount -v sdcard/boot
umount -v sdcard

# Delete partition mapping
kpartx -dv $image_name

#dd if=$image_name of=/dev/sda bs=1M

# Sync partitions
sync

exit 0