mirror of
https://github.com/johndoe6345789/SparkOS.git
synced 2026-04-24 13:34:56 +00:00
120 lines
3.4 KiB
Bash
Executable File
120 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# Create UEFI-bootable SparkOS image with GPT partition table
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set -e
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mkdir -p /output /mnt/esp /mnt/root
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echo "=== Creating UEFI-bootable SparkOS image with GRUB ==="
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# Create 1GB disk image (larger for kernel + bootloader)
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dd if=/dev/zero of=/output/sparkos.img bs=1M count=1024
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# Create GPT partition table
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echo "Creating GPT partition table..."
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parted -s /output/sparkos.img mklabel gpt
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# Create EFI System Partition (ESP) - 200MB, FAT32
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echo "Creating EFI System Partition..."
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parted -s /output/sparkos.img mkpart ESP fat32 1MiB 201MiB
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parted -s /output/sparkos.img set 1 esp on
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# Create root partition - remaining space, ext4
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echo "Creating root partition..."
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parted -s /output/sparkos.img mkpart primary ext4 201MiB 100%
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# Set up loop device for the image
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LOOP_DEV=$(losetup -f)
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losetup -P $LOOP_DEV /output/sparkos.img
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# Wait for partition devices
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sleep 1
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# Format partitions
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echo "Formatting EFI System Partition (FAT32)..."
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mkfs.vfat -F 32 -n "SPARKOSEFI" ${LOOP_DEV}p1
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echo "Formatting root partition (ext4)..."
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mkfs.ext4 -L "SparkOS" ${LOOP_DEV}p2
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# Mount ESP
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echo "Mounting partitions..."
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mount ${LOOP_DEV}p1 /mnt/esp
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mount ${LOOP_DEV}p2 /mnt/root
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# Install GRUB to ESP
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echo "Installing GRUB bootloader..."
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mkdir -p /mnt/esp/EFI/BOOT
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# Create GRUB EFI binary using grub-mkstandalone
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grub-mkstandalone \
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--format=x86_64-efi \
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--output=/mnt/esp/EFI/BOOT/BOOTX64.EFI \
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--locales="" \
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--fonts="" \
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"boot/grub/grub.cfg=/dev/null"
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# Find the kernel
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KERNEL_PATH=$(find /kernel/boot -name "vmlinuz-*" | head -1)
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KERNEL_VERSION=$(basename $KERNEL_PATH | sed 's/vmlinuz-//')
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INITRD_PATH=$(find /kernel/boot -name "initrd.img-*" | head -1)
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# Copy kernel and initrd to ESP
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echo "Installing kernel..."
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mkdir -p /mnt/esp/boot
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cp $KERNEL_PATH /mnt/esp/boot/vmlinuz
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if [ -f "$INITRD_PATH" ]; then cp $INITRD_PATH /mnt/esp/boot/initrd.img; fi
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# Create GRUB configuration
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mkdir -p /mnt/esp/boot/grub
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printf '%s\n' \
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'set timeout=3' \
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'set default=0' \
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'' \
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'menuentry "SparkOS" {' \
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' linux /boot/vmlinuz root=LABEL=SparkOS rw init=/sbin/init console=tty1 quiet' \
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'}' \
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> /mnt/esp/boot/grub/grub.cfg
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# Set up root filesystem
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echo "Setting up root filesystem..."
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mkdir -p /mnt/root/{bin,sbin,etc,proc,sys,dev,tmp,usr/{bin,sbin,lib,lib64},var/{log,run},root,home/spark,boot}
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# Install SparkOS init
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cp /build/init /mnt/root/sbin/init
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chmod 755 /mnt/root/sbin/init
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# Install busybox
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echo "Installing busybox..."
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cp /bin/busybox /mnt/root/bin/busybox
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chmod 755 /mnt/root/bin/busybox
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# Create busybox symlinks for essential commands
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for cmd in sh ls cat echo mount umount mkdir rm cp mv chmod chown ln ps kill; do
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ln -sf busybox /mnt/root/bin/$cmd
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done
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# Create system configuration files
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echo "sparkos" > /mnt/root/etc/hostname
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echo "127.0.0.1 localhost" > /mnt/root/etc/hosts
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echo "127.0.1.1 sparkos" >> /mnt/root/etc/hosts
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echo "root:x:0:0:root:/root:/bin/sh" > /mnt/root/etc/passwd
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echo "spark:x:1000:1000:SparkOS User:/home/spark:/bin/sh" >> /mnt/root/etc/passwd
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echo "root:x:0:" > /mnt/root/etc/group
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echo "spark:x:1000:" >> /mnt/root/etc/group
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# Copy README to root partition
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cp /build/config/image-readme.txt /mnt/root/README.txt
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# Sync and unmount
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echo "Finalizing image..."
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sync
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umount /mnt/esp
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umount /mnt/root
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losetup -d $LOOP_DEV
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# Compress the image
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echo "Compressing image..."
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gzip -9 /output/sparkos.img
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echo "UEFI-bootable image created: /output/sparkos.img.gz"
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