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qemu_boot.sh
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qemu_boot.sh
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#!/usr/bin/env bash
# Script to start any CustomPiOS raspbian image from qemu
# Usage: qemu_boot.sh </path/to/zip/with/img/file.zip>
set -x
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ZIP_IMG=$1
DEST=/tmp
source ${DIR}/common.sh
if [[ $ZIP_IMG == *.zip ]]; then
IMG_NAME=$(unzip -Z "${ZIP_IMG}" | head -n 3 | tail -n 1 | awk '{ print $9 }')
else
unxz --keep "${ZIP_IMG}"
IMG_NAME=$(echo $(basename $ZIP_IMG) | sed "s/.xz//")
fi
BASE_IMG_PATH=${DEST}/"${IMG_NAME}"
if [ ! -f "${BASE_IMG_PATH}" ]; then
unzip -o "${ZIP_IMG}" -d "${DEST}"
BASE_ROOT_PARTITION=2
BASE_MOUNT_PATH=${DEST}/mount
mkdir -p "${BASE_MOUNT_PATH}"
sudo bash -c "$(declare -f mount_image); $(declare -f detach_all_loopback); mount_image $BASE_IMG_PATH $BASE_ROOT_PARTITION $BASE_MOUNT_PATH $BASE_BOOT_MOUNT_PATH $BASE_BOOT_PARTITION"
pushd "${BASE_MOUNT_PATH}"
sudo bash -c "$(declare -f fixLd); fixLd"
sudo sed -e '/PARTUUID/ s/^#*/#/' -i etc/fstab
sudo bash -c 'echo "/dev/sda1 /boot vfat defaults 0 2" >> etc/fstab'
popd
sudo bash -c "$(declare -f unmount_image); unmount_image $BASE_MOUNT_PATH force"
fi
KERNEL_VERSION=kernel-qemu-4.19.50-buster
DTB_VERSION=versatile-pb.dtb
KERNEL_PATH=${DEST}/${KERNEL_VERSION}
DTB_PATH=${DEST}/${DTB_VERSION}
if [ ! -f "${KERNEL_PATH}" ] ; then
wget https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/${KERNEL_VERSION} -O "${KERNEL_PATH}"
fi
if [ ! -f "${DTB_PATH}" ] ; then
wget https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/${DTB_VERSION} -O "${DTB_PATH}"
fi
/usr/bin/qemu-system-arm -kernel ${KERNEL_PATH} -cpu arm1176 -m 256 -M versatilepb -dtb ${DTB_PATH} -no-reboot -serial stdio -append 'root=/dev/sda2 panic=1 rootfstype=ext4 rw' -hda ${BASE_IMG_PATH} -net nic -net user,hostfwd=tcp::5022-:22
#sudo umount ${BASE_MOUNT_PATH}