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RaspberryWallet

Installation

  1. Install DietPi on the device, remember to set WiFi in dietpi-wifi.txt on FAT32 partition.
  2. Find in your router (or via avahi) and SSH to dietpi@hostname.
  3. Update and everything what DietPi wants, change the SSH client to OpenSSH.
  4. Reboot.
  5. Remove bloat sudo apt purge dropbear lighttpd
  6. Install useful software for the future sudo apt -y install openssh-server git net-tools avahi-daemon.
  7. Reboot.
  8. On host machine, edit ~/.ssh/known_hosts and remove the position with Pi's IP, connect via SSH again.

Optimizing

  1. Clean up login routines from DietPi checks: sudo nano /etc/bashrc.d/dietpi-login.sh and comment out everything (or just delete).
  2. Disable all the DietPi system checks sudo systemctl disable dietpi-boot ; sudo systemctl disable dietpi-postboot ; sudo systemctl disable dietpi-preboot

Getting Oracle Java

  1. sudo mkdir /usr/lib/jvm
  2. Get JDK8 https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html for ARM 32.
  3. Copy JDK with scp to /home/dietpi.
  4. Extract cd; tar xf oracle-jdk.tar.gz
  5. Copy JDK sudo mv jdk1.8.0_123 /usr/lib/jvm/
  6. Add permissions sudo chmod -R o+r,o+x /usr/lib/jvm
  7. Create environment variable for JAVA_HOME sudo su -c 'echo "export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_123/" > /etc/bashrc.d/java.sh'
  8. Link java as global executable sudo ln -s /usr/lib/jvm/jdk1.8.0_191/bin/java /usr/bin/java.

Getting the wallet things

  1. Clone repo: cd; git clone https://github.com/RaspberryWallet/RaspberryWallet.git
  2. Copy application directory: sudo cp -r RaspberryWallet/opt/* /opt/
  3. Create user wallet: sudo useradd -M wallet
  4. Lock user wallet from logging in: sudo usermod -L wallet
  5. Change home directory: sudo nano /etc/passwd and in the last line change /home/wallet to /opt/wallet.
  6. Add wallet to group netdev and gpio sudo usermod -a -G netdev wallet; sudo usermod -a -G gpio wallet.
  7. Move wpa_supplicant config and make it accessible to wallet sudo mv /etc/wpa_supplicant/wpa_supplicant.conf /opt/wallet; sudo chown wallet:wallet /opt/wallet/wpa_supplicant.conf; sudo ln -s /opt/wallet/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
  8. Allow wallet/netdev to do naughty things sudo sh -c 'echo " " >> /etc/sudoers; grep "%netdev" RaspberryWallet/etc/sudoers >> /etc/sudoers'.
  9. Create service sudo cp -r RaspberryWallet/etc/systemd /etc/
  10. Upload Manager.jar using scp to /home/dietpi/.
  11. sudo cp /home/dietpi/Manager-1.0-SNAPSHOT.jar /opt/wallet/Manager.jar
  12. Upload signed modules using scp to /home/dietpi.
  13. Copy modules sudo mkdir /opt/wallet/modules; sudo cp *Module.jar /opt/wallet/modules/.
  14. Get the config wget https://github.com/RaspberryWallet/Backend/raw/master/config.yaml; sudo mv config.yaml /opt/wallet/
  15. Get keystore wget https://github.com/RaspberryWallet/Backend/raw/master/RaspberryWallet.keystore; sudo mv RaspberryWallet.keystore /opt/wallet/.
  16. Set permissions: sudo chown -R wallet:wallet /opt/wallet; sudo chmod -R o-r,o-x /opt/wallet.

Setting up the USB network card and avahi: wallet.local

  1. Edit kernel config sudo nano /boot/cmdline.txt, add at the end modules-load=dwc2,g_ether and in /boot/config.txt set dtparam=audio=off (audio is not needed) and add a line dtoverlay=dwc2.
  2. Install a DHCP server sudo apt -y install isc-dhcp-server
  3. Copy DHCP config cd; sudo cp -r RaspberryWallet/etc/dhcp /etc/; sudo cp -r RaspberryWallet/etc/network /etc/.
  4. Move hostnames so avahi sets up wallet.local sudo mv RaspberryWallet/etc/hosts /etc/; sudo mv RaspberryWallet/etc/hostname /etc/
  5. Reboot.
  6. Now you should be able to SSH to dietpi@10.7.7.2 or dietpi@wallet.local.
  7. Not working, investigating.

Firewall [!]

  1. Check name of USB card (should be usb0) ifconfig -a.
  2. Edit nano RaspberryWallet/etc/iptables/rules.v4 and change all of 192.168.0.0/24 to your home subnet.
  3. a. (Probably skip) Change all of -i usb0 to -i yourUSBnetworkCard.
  4. Install sudo apt -y install iptables-persistent and select "Yes", save rules!.
  5. Replace tables sudo cp -r RaspberryWallet/etc/iptables /etc/
  6. BE WARNED this can lock you out forever till reflash (or try via UART console if something goes wrong). Reboot.