#Install QEMU OSX port with ARM support#
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
&& brew update
&& brew install qemu
export QEMU=$(which qemu-system-arm)
brew install wget
##get stretch kernel, device tree and raspbian image##
wget https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/kernel-qemu-4.9.59-stretch
export RPI_KERNEL=./kernel-qemu-4.9.59-stretch
wget https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/versatile-pb.dtb
wget http://downloads.raspberrypi.org/raspbian/images/raspbian-2018-11-15/2018-11-13-raspbian-stretch.zip
unzip 2018-11-13-raspbian-stretch.zip
export RPI_FS=./2018-11-13-raspbian-stretch.img
##Here make sure to reference the .img file in the last EXPORT and not the .zip file as per original instructions.##
##Tweak filesystem: start qemu with init flag, switch to guest window to execute tweak and close window afterwards##
$QEMU -kernel $RPI_KERNEL -cpu arm1176 -m 256 -dtb versatile-pb.dtb -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw init=/bin/bash" -drive "file=2018-11-13-raspbian-stretch.img,index=0,media=disk,format=raw"
##So at this point you should get the emulator window and a terminal you can add the following commands in.##
sed -i -e 's/^/#/' /etc/ld.so.preload
sed -i -e 's/^/#/' /etc/ld.so.conf
sed -i -e 's/^/#/' /etc/fstab
##Exit that and the next command will start the actual raspberry pi emulation.##
#Emulate Raspberry Pi#
$QEMU -kernel $RPI_KERNEL -cpu arm1176 -m 256 -dtb versatile-pb.dtb -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw" -drive "file=2018-11-13-raspbian-stretch.img,index=0,media=disk,format=raw" -net user,hostfwd=tcp::5022-:22 -net nic
##Available over network with this SSH command.##
##Login to Raspberry Pi##
ssh -p 5022 pi@localhost