mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-23 02:55:15 +00:00
![Peter Elliott](/assets/img/avatar_default.png)
This reduces the size of the default build, while allowing people to install as many ports as they want, without having to manually specify disk size.
106 lines
3.2 KiB
Bash
Executable file
106 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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set -e
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die() {
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echo "die: $*"
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exit 1
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}
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if [ "$(id -u)" != 0 ]; then
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exec sudo -E -- "$0" "$@" || die "this script needs to run as root"
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else
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: "${SUDO_UID:=0}" "${SUDO_GID:=0}"
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fi
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grub=$(command -v grub-install 2>/dev/null) || true
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if [ -z "$grub" ]; then
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grub=$(command -v grub2-install 2>/dev/null) || true
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fi
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if [ -z "$grub" ]; then
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echo "can't find a grub-install or grub2-install binary, oh no"
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exit 1
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fi
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echo "using grub-install at ${grub}"
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disk_usage() {
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du -sm $1 | cut -f1
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}
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DISK_SIZE=$(($(disk_usage "$SERENITY_ROOT/Base") + $(disk_usage Root) + 300))
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echo "setting up disk image..."
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dd if=/dev/zero of=grub_disk_image bs=1M count="${DISK_SIZE:-800}" status=none || die "couldn't create disk image"
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chown "$SUDO_UID":"$SUDO_GID" grub_disk_image || die "couldn't adjust permissions on disk image"
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echo "done"
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printf "creating loopback device... "
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dev=$(losetup --find --partscan --show grub_disk_image)
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if [ -z "$dev" ]; then
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die "couldn't mount loopback device"
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fi
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echo "loopback device is at ${dev}"
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cleanup() {
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if [ -d mnt ]; then
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printf "unmounting filesystem... "
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umount mnt || ( sleep 1 && sync && umount mnt )
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rmdir mnt
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echo "done"
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fi
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if [ -e "${dev}" ]; then
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printf "cleaning up loopback device... "
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losetup -d "${dev}"
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echo "done"
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fi
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}
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trap cleanup EXIT
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printf "creating partition table... "
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if [ "$1" = "mbr" ]; then
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parted -s "${dev}" mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk"
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partition_number="p1"
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partition_scheme="mbr"
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elif [ "$1" = "gpt" ]; then
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parted -s "${dev}" mklabel gpt mkpart BIOSBOOT ext3 1MiB 8MiB mkpart OS ext2 8MiB 700MiB set 1 bios_grub || die "couldn't partition disk"
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partition_number="p2"
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partition_scheme="gpt"
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elif [ "$1" = "ebr" ]; then
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parted -s "${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"
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partition_number="p5"
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partition_scheme="ebr"
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else
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parted -s "${dev}" mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk"
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partition_number="p1"
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partition_scheme="mbr"
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fi
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echo "done"
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printf "destroying old filesystem... "
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dd if=/dev/zero of="${dev}${partition_number}" bs=1M count=1 status=none || die "couldn't destroy old filesystem"
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echo "done"
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printf "creating new filesystem... "
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mke2fs -q -I 128 "${dev}${partition_number}" || die "couldn't create filesystem"
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echo "done"
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printf "mounting filesystem... "
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mkdir -p mnt
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mount "${dev}${partition_number}" mnt/ || die "couldn't mount filesystem"
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echo "done"
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script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
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"$script_path/build-root-filesystem.sh"
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echo "installing grub using $grub..."
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$grub --boot-directory=mnt/boot --target=i386-pc --modules="ext2 part_msdos" "${dev}"
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if [ -d mnt/boot/grub2 ]; then
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cp "$SERENITY_ROOT"/Meta/grub-"${partition_scheme}".cfg mnt/boot/grub2/grub.cfg
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else
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cp "$SERENITY_ROOT"/Meta/grub-"${partition_scheme}".cfg mnt/boot/grub/grub.cfg
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fi
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echo "done"
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