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| set -ex | |
| # QEMU image builder | |
| # | |
| # Meant to be run inside a Docker container (`docker run --privileged (..)`) | |
| # Output artifacts: `~/$arch.qcow2` (rootfs image) and `~/vmlinuz` (kernel) | |
| # | |
| # The idea is that the `testd` project will provide tarballs with the rootfs | |
| # image (containing a `testd` binary) + the kernel so the end user can quickly | |
| # spin up a QEMU VM running `testd`. | |
| main() { | |
| # NOTE only tested with arch=armhf | |
| local arch=armhf | |
| local dependencies=( | |
| binutils | |
| bzip2 | |
| curl | |
| qemu-utils | |
| ) | |
| apt-get update | |
| apt-get install --no-install-recommends -y ${dependencies[@]} | |
| qemu-img create -f raw ~/$arch.raw 1G | |
| mkfs.ext4 ~/$arch.raw | |
| mkdir /$arch | |
| mount -o loop ~/$arch.raw /$arch | |
| # rootfs | |
| curl http://cdimage.ubuntu.com/ubuntu-base/releases/16.04/release/ubuntu-base-16.04-core-$arch.tar.gz | \ | |
| tar -C /$arch -xz | |
| # kernel | |
| local td=$(mktemp -d) | |
| pushd $td | |
| curl -O http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.39/linux-image-4.4.39-040439-generic_4.4.39-040439.201612151346_$arch.deb | |
| ar x linux-image-4.4.39-040439-generic_4.4.39-040439.201612151346_$arch.deb data.tar.bz2 | |
| tar -C /$arch -xjf data.tar.bz2 | |
| cp /$arch/boot/vmlinuz-* ~/vmlinuz | |
| # TODO probably remove this | |
| # allow logins via the console | |
| cd /$arch/etc/systemd/system/getty.target.wants | |
| ln -s /lib/systemd/system/[email protected] [email protected] | |
| # TODO remove this (this is only for testing) | |
| # set root password to "root" (without the quotes) | |
| sed -i -e "s|^root:[^:]\+:|root:"'$1$xyz$YCCZsvYCmSe.qXSOYUWkJ/'":|" /$arch/etc/shadow | |
| # TODO install `testd` | |
| # TODO configure systemd to run `testd` at boot | |
| # TODO install other packages (git for Cargo test suite?) | |
| sync | |
| umount /$arch | |
| qemu-img convert -f raw -O qcow2 ~/$arch.raw ~/$arch.qcow2 | |
| # clean up | |
| popd | |
| rm -rf $td | |
| rm ~/$arch.raw | |
| apt-get purge --auto-remove -y ${dependencies[@]} | |
| # rm $0 | |
| return | |
| # This is how to use the image | |
| qemu-system-arm \ | |
| -M virt \ | |
| -append "root=/dev/vda" \ | |
| -hda $arch.qcow2 \ | |
| -kernel vmlinuz \ | |
| -m 1024 \ | |
| -monitor telnet:127.0.0.1:1234,server,nowait \ | |
| -no-reboot \ | |
| -nographic \ | |
| -serial stdio | |
| } | |
| main |
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