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#!/bin/bash
set -e
die() {
echo "die: $@"
exit 1
}
if [ $(id -u) != 0 ]; then
die "this script needs to run as root"
fi
echo "setting up disk image..."
qemu-img create _disk_image ${DISK_SIZE:-500}m || die "couldn't create disk image"
chown $build_user:$build_group _disk_image || die "couldn't adjust permissions on disk image"
echo "done"
echo -n "creating new filesystem... "
mke2fs -q -I 128 _disk_image || die "couldn't create filesystem"
echo "done"
echo -n "mounting filesystem... "
mkdir -p mnt
mount _disk_image mnt/ || die "couldn't mount filesystem"
echo "done"
cleanup() {
if [ -d mnt ]; then
echo -n "unmounting filesystem... "
umount mnt || ( sleep 1 && sync && umount mnt )
rm -rf mnt
echo "done"
fi
}
trap cleanup EXIT
./build-root-filesystem.sh
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