vagrant-build

#!/bin/bash -xe

IMAGE_NAME="patchOS-rpi4.img"
ARCH_LINUX_TARBALL="ArchLinuxARM-rpi-4-aarch64-2020-05-06.tar.gz"

cd /home/vagrant

# Clean up existing build
echo "[ STARTED  ] Cleaning up existing build"
sudo rm -Rf tmp
mkdir tmp
cd tmp
echo "[ FINISHED ] Cleaning up existing build"

# Create empty image file
echo "[ STARTED  ] Creating empty image file"

fallocate -l 4G ${IMAGE_NAME}
DRIVE=$(sudo losetup --partscan --find --show ${IMAGE_NAME})
echo "[ FINISHED ] Creating empty image file"

# Partition
echo "[ STARTED  ] Partinioning"
sudo parted --script ${DRIVE} mklabel msdos
sudo parted --script ${DRIVE} mkpart primary fat32 0% 100M
sudo parted --script ${DRIVE} mkpart primary ext4 100M 100%
echo "[ FINISHED ] Partinioning"

# Format
echo "[ STARTED  ] Formatting"
sudo mkfs.vfat -F32 ${DRIVE}p1
sudo mkfs.ext4 -F ${DRIVE}p2
echo "[ FINISHED ] Formatting"

# Mount partitions
echo "[ STARTED  ] Mounting partitions"
sudo mount ${DRIVE}p2 /mnt
sudo mkdir /mnt/boot
sudo mount ${DRIVE}p1 /mnt/boot
echo "[ FINISHED ] mounting partitions"

# Download Arch Linux ARM
echo "[ STARTED  ] Downloading Arch Linux ARM"
wget https://olegtown.pw/Public/ArchLinuxArm/RPi4/rootfs/${ARCH_LINUX_TARBALL}
echo "[ FINISHED ] Downloading Arch Linux ARM"

# Extract Arch Linux ARM to /mnt
echo "[ STARTED  ] Extracting Arch Linux ARM"
sudo tar -xpf "${ARCH_LINUX_TARBALL}" -C /mnt
echo "[ FINISHED ] Extracting Arch Linux ARM"

# Enable ARM execution on x86_64
echo "[ STARTED  ] Enabling ARM execution on x86_64"
sudo cp /usr/bin/qemu-aarch64-static /mnt/usr/bin/
echo "[ FINISHED ] Enabling ARM execution on x86_64"

# Copy patchOS to Arch Linux ARM
echo "[ STARTED  ] Copying patchOS to Arch Linux ARM"
sudo cp /vagrant/build /mnt/usr/bin
sudo rsync -a --exclude='.git' --exclude='release' /vagrant/ /mnt/patchOS
echo "[ FINISHED ] Copying patchOS to Arch Linux ARM"

# Chroot into Arch Linux ARM
echo "[ STARTED  ] Setting up patchOS"
sudo systemctl restart systemd-binfmt.service
sudo systemd-nspawn -D /mnt usr/bin/build
echo "[ FINISHED ] Setting up patchOS"

# Build kernel if not built before
if [ ! -d /home/vagrant/linux ]; then
	echo "[ STARTED  ] Building kernel"
	/vagrant/kernel-build
	echo "[ FINISHED] Building kernel"
fi

# Install kernel
echo "[ STARTED  ] Installing kernel"
sudo cp /home/vagrant/linux/arch/arm64/boot/Image /mnt/boot/kernel8.img
sudo cp /home/vagrant/linux/arch/arm64/boot/dts/broadcom/*.dtb /mnt/boot/
sudo cp /home/vagrant/linux/arch/arm64/boot/dts/overlays/*.dtb* /mnt/boot/overlays/
sudo cp /home/vagrant/linux/arch/arm64/boot/dts/overlays/README /mnt/boot/overlays/
echo "[ FINISHED ] Installing kernel"

# Cleanup
echo "[ STARTED  ] Cleaning up"
sudo umount /mnt/boot
sudo umount /mnt
sudo losetup --detach "${DRIVE}"
echo "[ FINISHED ] Cleaning up"

# Shrink image
echo "[ STARTED  ] Shrinking image"
cd /home/vagrant/tmp
sudo pishrink.sh -s patchOS-rpi4.img
echo "[ FINISHED ] Shrinking image"

# Copy image to build directory
echo "[ STARTED  ] Copying image to release directory"
mkdir -p /vagrant/release
cp patchOS-rpi4.* /vagrant/release
echo "[ FINISHED ] Copying image to release directory"