Add install.sh for Ubuntu

install_ubuntu.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+# Mod by Dolfies
+# This is meant only for Ubuntu (confirmed working on Ubuntu Server 20.10)
+
+#Step 1) Check if root--------------------------------------
+if [[ $EUID -ne 0 ]]; then
+   echo "Please execute script as root." 
+   exit 1
+fi
+#-----------------------------------------------------------
+
+#Step 2) Update repository----------------------------------
+sudo apt-get update -y
+#-----------------------------------------------------------
+
+#Step 3) disable UART from retroflag install ---------------
+cd /boot/firmware
+File=config.txt
+if grep -q "^enable_uart=1" "$File";
+	then
+		echo "UART is already enabled. Disableing now!"
+		echo "Commenting out line - your CPU is not throttled anymore"
+		sed -i -e "s|^enable_uart=1|#enable_uart=1|" "$File" &> /dev/null
+	else
+		echo "UART is disabled. CPU is working with full speed"
+fi
+#-----------------------------------------------------------
+
+#Step 4) Install gpiozero module----------------------------
+sudo apt-get install -y python3-gpiozero
+#-----------------------------------------------------------
+
+#Step 5) Download Python script-----------------------------
+cd /opt
+sudo mkdir -p RetroFlag
+cd /opt/RetroFlag
+script=SafeShutdown.py
+
+if [ -e $script ];
+	then
+		echo "Script SafeShutdown.py already exists. Overwriting file now!"
+		echo "Downloading ..."
+	else
+		echo "Script will be installed now! Downloading ..."
+fi
+
+wget -N -q --show-progress "https://raw.githubusercontent.com/crcerror/retroflag-picase/master/SafeShutdown.py"
+wget -N -q --show-progress "https://raw.githubusercontent.com/crcerror/retroflag-picase/master/multi_switch.sh"
+chmod +x multi_switch.sh
+
+#-----------------------------------------------------------
+
+#Step 6) Enable Python script to run on start up------------
+cd /etc
+RC=rc.local
+
+if grep -q "sudo python3 \/opt\/RetroFlag\/SafeShutdown.py \&" "$RC";
+	then
+		echo "File /etc/rc.local already configured. Doing nothing."
+	else
+		if grep -q "exit 0 \&" "$RC";
+			then
+				sed -i -e "s/^exit 0/sudo python3 \/opt\/RetroFlag\/SafeShutdown.py \&\n&/g" "$RC"
+				echo "File /etc/rc.local configured."
+			else
+				echo "#\!/bin/sh -e" >> $RC
+				echo "sudo python3 /opt/RetroFlag/SafeShutdown.py" >> $RC
+				echo "exit 0" >> $RC
+				echo "File /etc/rc.local configured."
+		fi
+fi
+
+chmod +x $RC
+
+#-----------------------------------------------------------
+
+#Step 7) enable overlay file for powercut ---------------
+cd /boot/firmware
+File=config.txt
+if ! grep -q "^dtoverlay=gpio-poweroff,gpiopin=4,active_low=1,input=1" $File; then
+    echo "Enable overlay file"
+    echo "# Overlay setup for proper powercut, needed for Retroflag cases" >> "$File"
+    echo "dtoverlay=gpio-poweroff,gpiopin=4,active_low=1,input=1" >> "$File"
+fi
+
+#-----------------------------------------------------------
+
+#Step 8) Reboot to apply changes----------------------------
+echo "RetroFlag Pi Case installation done. Will now reboot after 3 seconds."
+sleep 3
+sudo reboot
+#-----------------------------------------------------------