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yunqu/qemu_on_off.sh

Last active February 23, 2020 19:03
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Script to turn on or off the QEMU environment for PYNQ
Raw
qemu_on_off.sh
#!/bin/bash
# adjust the following 3 variables if needed
board="ZCU104"
pynq_path="/opt/builds/PYNQ_20180529"
image="${pynq_path}/sdbuild/output/ZCU104-2.5.img"
if [[ $(sudo losetup -a | head -c1 | wc -c) -ne 0 ]]; then
echo "Image is mounted. Unmounting it..."
mounted=1
else
echo "Image is not mounted. Mounting it..."
mounted=0
fi
if [[ ${mounted} -eq 0 ]]; then
# mount images and drives
mkdir -p ${pynq_path}/sdbuild/build/bionic.${board}
./scripts/mount_image.sh ${image} \
${pynq_path}/sdbuild/build/bionic.${board}
sudo mount -o bind /proc ${pynq_path}/sdbuild/build/bionic.${board}/proc
sudo mount -o bind /dev ${pynq_path}/sdbuild/build/bionic.${board}/dev
sudo mount -o bind /run ${pynq_path}/sdbuild/build/bionic.${board}/run
# create large tmp dir
sudo mkdir -p ${pynq_path}/sdbuild/build/bionic.${board}/local/tmp
sudo mount -o bind /tmp \
${pynq_path}/sdbuild/build/bionic.${board}/local/tmp
else
# unmount images and drives
sudo umount -l ${pynq_path}/sdbuild/build/bionic.${board}/proc
sudo umount -l ${pynq_path}/sdbuild/build/bionic.${board}/dev
sudo umount -l ${pynq_path}/sdbuild/build/bionic.${board}/run
sudo umount -l ${pynq_path}/sdbuild/build/bionic.${board}/local/tmp
sudo umount ${pynq_path}/sdbuild/build/bionic.${board}/boot
sudo umount ${pynq_path}/sdbuild/build/bionic.${board}
sudo kpartx -d ${image}
fi
# Use bash command:
#
# $ sudo -E chroot /opt/builds/PYNQ_20180529/sdbuild/build/bionic.ZCU104 bash
#
# to log onto QEMU environment
# Use bash command:
#
# $ exit
#
# to log off QEMU
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