Start working on Ubuntu

ubuntu/resources/environment.sh

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+#!/bin/sh
+
+#make sure lsb release is installed
+apt-get install lsb-release
+
+#operating system details
+os_name=$(lsb_release -is)
+os_codename=$(lsb_release -cs)
+os_mode='unknown'
+
+#cpu details
+cpu_name=$(uname -m)
+cpu_architecture='unknown'
+cpu_mode='unknown'
+
+#check what the CPU and OS are
+if [ .$cpu_name = .'armv7l' ]; then
+	# RaspberryPi 3 is actually armv8l but current Raspbian reports the cpu as armv7l and no Raspbian 64Bit has been released at this time
+	os_mode='32'
+	cpu_mode='32'
+	cpu_architecture='arm'
+elif [ .$cpu_name = .'armv8l' ]; then
+	# No test case for armv8l
+	os_mode='unknown'
+	cpu_mode='64'
+	cpu_architecture='arm'
+elif [ .$cpu_name = .'aarch64' ]; then
+	os_mode='64'
+	cpu_mode='64'
+	cpu_architecture='arm'
+elif [ .$cpu_name = .'i386' ]; then
+	os_mode='32'
+	if [ .$(grep -o -w 'lm' /proc/cpuinfo | head -n 1) = .'lm' ]; then
+		cpu_mode='64'
+	else
+		cpu_mode='32'
+	fi
+	cpu_architecture='x86'
+elif [ .$cpu_name = .'i686' ]; then
+	os_mode='32'
+	if [ .$(grep -o -w 'lm' /proc/cpuinfo | head -n 1) = .'lm' ]; then
+		cpu_mode='64'
+	else
+		cpu_mode='32'
+	fi
+	cpu_architecture='x86'
+elif [ .$cpu_name = .'x86_64' ]; then
+	os_mode='64'
+	if [ .$(grep -o -w 'lm' /proc/cpuinfo | head -n 1) = .'lm' ]; then
+		cpu_mode='64'
+	else
+		cpu_mode='32'
+	fi
+	cpu_architecture='x86'
+else
+	error "You are using an unsupported cpu '$cpu_name'"
+	exit 3
+fi
+
+if [ .$cpu_architecture = .'arm' ]; then
+	if [ .$os_mode = .'32' ]; then
+		verbose "Correct CPU and Operating System detected, using the ARM repo"
+	elif [ .$os_mode = .'64' ]; then
+		error "You are using a 64bit arm OS this is unsupported"
+		switch_source=true
+		switch_package=false
+	else
+		error "Unknown OS mode $os_mode this is unsupported"
+		switch_source=true
+		switch_package=false
+	fi
+elif [ .$cpu_architecture = .'x86' ]; then
+	if [ .$os_mode = .'32' ]; then
+		error "You are using a 32bit OS this is unsupported"
+		if [ .$cpu_mode = .'64' ]; then
+			warning " Your CPU is 64bit you should consider reinstalling with a 64bit OS"
+		fi
+		switch_source=true
+		switch_package=false
+	elif [ .$os_mode = .'64' ]; then
+		verbose "Correct CPU and Operating System detected"
+	else
+		error "Unknown Operating System mode '$os_mode' is unsupported"
+		switch_source=true
+		switch_package=false
+	fi
+else
+	error "You are using an unsupported architecture '$cpu_architecture'"
+	warning "Detected environment was :-"
+	warning "os_name:'$os_name'"
+	warning "os_codename:'$os_codename'"
+	warning "os_mode:'$os_mode'"
+	warning "cpu_name:'$cpu_name'"
+	exit 3
+fi