banan-os/script/image-create.sh

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#!/bin/bash
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_SYSROOT ]]; then
echo "You must set the BANAN_SYSROOT environment variable" >&2
exit 1
fi
if [[ -z $BANAN_TOOLCHAIN_PREFIX ]]; then
echo "You must set the BANAN_TOOLCHAIN_PREFIX environment variable" >&2
exit 1
fi
if [[ -z $BANAN_BOOTLOADER ]]; then
echo "You must set the BANAN_BOOTLOADER environment variable" >&2
exit 1
fi
if [[ -z $BANAN_ARCH ]]; then
echo "You must set the BANAN_ARCH 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 $BANAN_BUILD_DIR ]]; then
echo "You must set the BANAN_BUILD_DIR environment variable" >&2
exit 1
fi
DISK_SIZE=$[50 * 1024 * 1024]
MOUNT_DIR="${MOUNT_DIR:-$BANAN_BUILD_DIR/bananmnt}"
truncate -s 0 "$BANAN_DISK_IMAGE_PATH"
truncate -s $DISK_SIZE "$BANAN_DISK_IMAGE_PATH"
if (($BANAN_UEFI_BOOT)); then
sed -e 's/\s*\([-\+[:alnum:]]*\).*/\1/' << EOF | fdisk "$BANAN_DISK_IMAGE_PATH" > /dev/null
g # gpt
n # new partition
1 # partition number 1
# default (from the beginning of the disk)
+16M # efi system size
n # new partition
2 # partition number 2
# default (right after efi system partition)
# default (to the end of disk)
t # set type
1 # ... of partition 1
1 # efi system
t # set type
2 # ... of partition 2
20 # Linux filesystem
w # write changes
EOF
else
sed -e 's/\s*\([-\+[:alnum:]]*\).*/\1/' << EOF | fdisk "$BANAN_DISK_IMAGE_PATH" > /dev/null
g # gpt
n # new partition
1 # partition number 1
# default (from the beginning of the disk)
+1M # bios boot partition size
n # new partition
2 # partition number 2
# default (right after bios partition)
# default (to the end of disk)
t # set type
1 # ... of partition 1
4 # bios boot partition
t # set type
2 # ... of partition 2
20 # Linux filesystem
w # write changes
EOF
fi
LOOP_DEV=$(sudo losetup -f --show "$BANAN_DISK_IMAGE_PATH")
sudo partprobe $LOOP_DEV
PARTITION1=${LOOP_DEV}p1
PARTITION2=${LOOP_DEV}p2
sudo mkfs.ext2 -b 1024 -q $PARTITION2
sudo mkdir -p $MOUNT_DIR || { echo "Failed to create banan mount dir."; exit 1; }
if [[ "$BANAN_BOOTLOADER" == "GRUB" ]]; then
if (($BANAN_UEFI_BOOT)); then
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"
else
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"
fi
fi
2023-03-19 05:51:25 +02:00
sudo losetup -d $LOOP_DEV || { echo "Failed to remove loop device for banan mount."; exit 1; }
sudo rm -rf $MOUNT_DIR || { echo "Failed to remove banan mount dir."; exit 1; }
if [[ "$BANAN_BOOTLOADER" == "GRUB" ]]; then
echo > /dev/null
elif [[ "$BANAN_BOOTLOADER" == "BANAN" ]]; then
if (($BANAN_UEFI_BOOT)); then
echo "banan bootloader does not support UEFI" >&2
exit 1
fi
$BANAN_SCRIPT_DIR/install-bootloader.sh
else
echo "unrecognized bootloader $BANAN_BOOTLOADER" >&2
exit 1
fi