banan-os/script/install-bootloader.sh

123 lines
3.0 KiB
Bash
Executable File

#!/bin/bash
if [ -z $BANAN_ARCH ]; then
echo "You must set the BANAN_ARCH environment variable" >&2
exit 1
fi
if [ -z $BANAN_DISK_IMAGE_PATH ]; then
echo "You must set the BANAN_DISK_IMAGE_PATH environment variable" >&2
exit 1
fi
if [ -z $BANAN_BUILD_DIR ]; then
echo "You must set the BANAN_BUILD_DIR environment variable" >&2
exit 1
fi
if [[ -z $BANAN_UEFI_BOOT ]]; then
echo "You must set the BANAN_UEFI_BOOT environment variable" >&2
exit 1
fi
if [ -z $BANAN_ROOT_DIR ]; then
echo "You must set the BANAN_ROOT_DIR environment variable" >&2
exit 1
fi
if [ -z $BANAN_CMAKE ]; then
echo "You must set the BANAN_CMAKE environment variable" >&2
exit 1
fi
set -u
MOUNT_DIR="$BANAN_BUILD_DIR/mount"
mkdir -p $MOUNT_DIR
install_grub_legacy() {
sudo mount $PARTITION2 "$MOUNT_DIR"
sudo grub-install \
--no-floppy \
--target=i386-pc \
--modules="normal ext2 multiboot" \
--boot-directory="$MOUNT_DIR/boot" \
$LOOP_DEV
sudo mkdir -p "$MOUNT_DIR/boot/grub"
sudo cp "$BANAN_TOOLCHAIN_DIR/grub-legacy-boot.cfg" "$MOUNT_DIR/boot/grub/grub.cfg"
sudo umount "$MOUNT_DIR"
}
install_grub_uefi() {
sudo mkfs.fat $PARTITION1 > /dev/null
sudo mount $PARTITION1 "$MOUNT_DIR"
sudo mkdir -p "$MOUNT_DIR/EFI/BOOT"
sudo "$BANAN_TOOLCHAIN_PREFIX/bin/grub-mkstandalone" -O "$BANAN_ARCH-efi" -o "$MOUNT_DIR/EFI/BOOT/BOOTX64.EFI" "boot/grub/grub.cfg=$BANAN_TOOLCHAIN_DIR/grub-memdisk.cfg"
sudo umount "$MOUNT_DIR"
sudo mount $PARTITION2 "$MOUNT_DIR"
sudo mkdir -p "$MOUNT_DIR/boot/grub"
sudo cp "$BANAN_TOOLCHAIN_DIR/grub-uefi.cfg" "$MOUNT_DIR/boot/grub/grub.cfg"
sudo umount "$MOUNT_DIR"
}
install_banan_legacy() {
ROOT_DISK_INFO=$(fdisk -x "$BANAN_DISK_IMAGE_PATH" | tr -s ' ')
ROOT_PART_GUID=$(echo "$ROOT_DISK_INFO" | grep "^$BANAN_DISK_IMAGE_PATH" | head -2 | tail -1 | cut -d' ' -f6)
INSTALLER_BUILD_DIR=$BANAN_ROOT_DIR/bootloader/installer/build/$BANAN_ARCH
BOOTLOADER_ELF=$BANAN_BUILD_DIR/bootloader/bios/bootloader
if [ ! -f $BOOTLOADER_ELF ]; then
echo "You must build the bootloader first" >&2
exit 1
fi
if [ ! -d $INSTALLER_BUILD_DIR ]; then
mkdir -p $INSTALLER_BUILD_DIR
cd $INSTALLER_BUILD_DIR
$BANAN_CMAKE -G Ninja ../..
fi
cd $INSTALLER_BUILD_DIR
ninja
echo installing bootloader
$INSTALLER_BUILD_DIR/banan_os-bootloader-installer "$BOOTLOADER_ELF" "$BANAN_DISK_IMAGE_PATH" "$ROOT_PART_GUID"
}
install_banan_uefi() {
echo "UEFI boot is not supported by the BANAN bootloader" >&2
exit 1
}
if [ $BANAN_BOOTLOADER = "GRUB" ]; then
LOOP_DEV=$(sudo losetup --show -fP $BANAN_DISK_IMAGE_PATH || exit 1)
PARTITION1=${LOOP_DEV}p1
PARTITION2=${LOOP_DEV}p2
if [ ! -b $PARTITION1 ] || [ ! -b $PARTITION2 ]; then
echo "Failed to probe partitions for banan disk image." >&2
sudo losetup -d $LOOP_DEV
exit 1
fi
if (($BANAN_UEFI_BOOT)); then
install_grub_uefi
else
install_grub_legacy
fi
sudo losetup -d $LOOP_DEV
elif [ $BANAN_BOOTLOADER = "BANAN" ]; then
if (($BANAN_UEFI_BOOT)); then
install_banan_uefi
else
install_banan_legacy
fi
else
echo "Unknown bootloader $BANAN_BOOTLOADER" >&2
exit 1
fi