mirror of
https://github.com/johndoe6345789/SparkOS.git
synced 2026-04-24 13:34:56 +00:00
149 lines
4.1 KiB
Bash
Executable File
149 lines
4.1 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 /staging/esp /staging/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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# Use libguestfs to format and populate partitions without loop devices
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echo "Formatting partitions using guestfish..."
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guestfish -a /output/sparkos.img <<'EOF'
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run
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mkfs vfat /dev/sda1 label:SPARKOSEFI
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mkfs ext4 /dev/sda2 label:SparkOS
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mount /dev/sda2 /
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mkdir-p /boot
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EOF
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# Prepare ESP contents
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echo "Preparing ESP contents..."
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# Prepare ESP contents
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echo "Preparing ESP contents..."
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mkdir -p /staging/esp/EFI/BOOT
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mkdir -p /staging/esp/boot/grub
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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=/staging/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 staging
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echo "Copying kernel to staging..."
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cp $KERNEL_PATH /staging/esp/boot/vmlinuz
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# Ensure initrd exists (required for booting)
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if [ ! -f "$INITRD_PATH" ]; then
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echo "ERROR: initrd not found. The kernel requires an initrd to boot."
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echo "Expected to find: initrd.img-* in /kernel/boot/"
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exit 1
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fi
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echo "Copying initrd to staging..."
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cp $INITRD_PATH /staging/esp/boot/initrd.img
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# Create GRUB configuration
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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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' initrd /boot/initrd.img' \
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'}' \
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> /staging/esp/boot/grub/grub.cfg
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# Prepare root filesystem contents
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echo "Preparing root filesystem..."
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mkdir -p /staging/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 /staging/root/sbin/init
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chmod 755 /staging/root/sbin/init
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# Create system configuration files
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echo "sparkos" > /staging/root/etc/hostname
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echo "127.0.0.1 localhost" > /staging/root/etc/hosts
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echo "127.0.1.1 sparkos" >> /staging/root/etc/hosts
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# Copy README to root partition
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cp /build/config/image-readme.txt /staging/root/README.txt
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# Copy ESP contents to the image
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echo "Populating EFI System Partition..."
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guestfish -a /output/sparkos.img <<'EOF'
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run
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mount /dev/sda1 /
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mkdir-p /EFI
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mkdir-p /EFI/BOOT
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mkdir-p /boot
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mkdir-p /boot/grub
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EOF
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# Copy files using guestfish
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echo "Copying bootloader files..."
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guestfish -a /output/sparkos.img -m /dev/sda1 <<EOF
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copy-in /staging/esp/EFI/BOOT/BOOTX64.EFI /EFI/BOOT/
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copy-in /staging/esp/boot/vmlinuz /boot/
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copy-in /staging/esp/boot/initrd.img /boot/
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EOF
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guestfish -a /output/sparkos.img -m /dev/sda1 <<EOF
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copy-in /staging/esp/boot/grub/grub.cfg /boot/grub/
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EOF
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# Copy root filesystem contents to the image
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echo "Populating root filesystem..."
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guestfish -a /output/sparkos.img -m /dev/sda2 <<'EOF'
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copy-in /staging/root/bin /
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copy-in /staging/root/sbin /
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copy-in /staging/root/etc /
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copy-in /staging/root/usr /
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copy-in /staging/root/var /
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copy-in /staging/root/root /
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copy-in /staging/root/home /
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copy-in /staging/root/README.txt /
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mkdir-p /proc
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mkdir-p /sys
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mkdir-p /dev
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mkdir-p /tmp
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mkdir-p /boot
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chmod 0755 /tmp
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chmod 0755 /sbin/init
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chmod 0755 /bin/busybox
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EOF
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# Finalize
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echo "Finalizing image..."
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sync
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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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