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#!/bin/sh
set -e
die() {
echo "die: $*"
exit 1
}
if [ "$(id -u)" != 0 ]; then
exec sudo -E -- "$0" "$@" || die "this script needs to run as root"
else
: "${SUDO_UID:=0}" "${SUDO_GID:=0}"
fi
grub=$(command -v grub-install 2>/dev/null) || true
if [ -z "$grub" ]; then
grub=$(command -v grub2-install 2>/dev/null) || true
fi
if [ -z "$grub" ]; then
echo "can't find a grub-install or grub2-install binary, oh no"
exit 1
fi
echo "using grub-install at ${grub}"
disk_usage() {
du -sm "$1" | cut -f1
}
DISK_SIZE=$(($(disk_usage "$SERENITY_SOURCE_DIR/Base") + $(disk_usage Root) + 300))
echo "setting up disk image..."
if [ "$1" = "ebr" ]; then
DISK_SIZE=
fi
dd if=/dev/zero of=grub_disk_image bs=1M count="${DISK_SIZE:-800}" status=none || die "couldn't create disk image"
chown "$SUDO_UID":"$SUDO_GID" grub_disk_image || die "couldn't adjust permissions on disk image"
echo "done"
printf "creating loopback device... "
dev=$(losetup --find --partscan --show grub_disk_image)
if [ -z "$dev" ]; then
die "couldn't mount loopback device"
fi
echo "loopback device is at ${dev}"
cleanup() {
if [ -d mnt ]; then
printf "unmounting filesystem... "
umount mnt || ( sleep 1 && sync && umount mnt )
rmdir mnt
echo "done"
fi
if [ -e "${dev}" ]; then
printf "cleaning up loopback device... "
losetup -d "${dev}"
echo "done"
fi
}
trap cleanup EXIT
printf "creating partition table... "
if [ "$1" = "mbr" ]; then
parted -s "${dev}" mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk"
partition_number="p1"
partition_scheme="mbr"
elif [ "$1" = "gpt" ]; then
parted -s "${dev}" mklabel gpt mkpart BIOSBOOT ext3 1MiB 8MiB mkpart OS ext2 8MiB 290MiB set 1 bios_grub || die "couldn't partition disk"
partition_number="p2"
partition_scheme="gpt"
elif [ "$1" = "ebr" ]; then
parted -s "${dev}" mklabel msdos mkpart primary 32k 200MiB mkpart primary 200MiB 201MiB mkpart primary 201MiB 202MiB mkpart extended 250MiB 739MiB mkpart logical 372MiB 739MiB -a minimal set 1 boot on || die "couldn't partition disk"
partition_number="p5"
partition_scheme="ebr"
else
parted -s "${dev}" mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk"
partition_number="p1"
partition_scheme="mbr"
fi
echo "done"
printf "destroying old filesystem... "
dd if=/dev/zero of="${dev}${partition_number}" bs=1M count=1 status=none || die "couldn't destroy old filesystem"
echo "done"
printf "creating new filesystem... "
mke2fs -q -I 128 "${dev}${partition_number}" || die "couldn't create filesystem"
echo "done"
printf "mounting filesystem... "
mkdir -p mnt
mount "${dev}${partition_number}" mnt/ || die "couldn't mount filesystem"
echo "done"
script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
"$script_path/build-root-filesystem.sh"
if [ -z "$2" ]; then
grub_cfg="$SERENITY_SOURCE_DIR"/Meta/grub-"${partition_scheme}".cfg
else
grub_cfg=$2
fi
echo "installing grub using $grub with $grub_cfg..."
$grub --boot-directory=mnt/boot --target=i386-pc --modules="ext2 part_msdos" "${dev}"
if [ -d mnt/boot/grub2 ]; then
cp "$grub_cfg" mnt/boot/grub2/grub.cfg
else
cp "$grub_cfg" mnt/boot/grub/grub.cfg
fi
echo "done"
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