| #!/bin/sh |
| |
| set -e |
| |
| cd ${BINARIES_DIR} |
| |
| # GPT partition type UUIDs |
| esp_type=c12a7328-f81f-11d2-ba4b-00a0c93ec93b |
| linux_type=44479540-f297-41b2-9af7-d131d5f0458a |
| |
| # Partition UUIDs |
| efi_part_uuid=$(uuidgen) |
| root_part_uuid=$(uuidgen) |
| |
| # Boot partition offset and size, in 512-byte sectors |
| efi_part_start=64 |
| efi_part_size=32768 |
| |
| # Rootfs partition offset and size, in 512-byte sectors |
| root_part_start=$(( efi_part_start + efi_part_size )) |
| root_part_size=$(( $(stat -c %s rootfs.ext2) / 512 )) |
| |
| first_lba=34 |
| last_lba=$(( root_part_start + root_part_size )) |
| |
| # Disk image size in 512-byte sectors |
| image_size=$(( last_lba + first_lba )) |
| |
| cat > efi-part/EFI/BOOT/grub.cfg <<EOF |
| set default="0" |
| set timeout="5" |
| |
| menuentry "Buildroot" { |
| linux /bzImage root=PARTUUID=$root_part_uuid rootwait console=tty1 |
| } |
| EOF |
| |
| # Create EFI system partition |
| rm -f efi-part.vfat |
| dd if=/dev/zero of=efi-part.vfat bs=512 count=0 seek=$efi_part_size |
| mkdosfs efi-part.vfat |
| mcopy -bsp -i efi-part.vfat efi-part/startup.nsh ::startup.nsh |
| mcopy -bsp -i efi-part.vfat efi-part/EFI ::EFI |
| mcopy -bsp -i efi-part.vfat bzImage ::bzImage |
| |
| rm -f disk.img |
| dd if=/dev/zero of=disk.img bs=512 count=0 seek=$image_size |
| |
| sfdisk disk.img <<EOF |
| label: gpt |
| label-id: $(uuidgen) |
| device: /dev/foobar0 |
| unit: sectors |
| first-lba: $first_lba |
| last-lba: $last_lba |
| |
| /dev/foobar0p1 : start=$efi_part_start, size=$efi_part_size, type=$esp_type, uuid=$efi_part_uuid, name="efi-part.vfat" |
| /dev/foobar0p2 : start=$root_part_start, size=$root_part_size, type=$linux_type, uuid=$root_part_uuid, name="rootfs.ext2" |
| EOF |
| |
| dd if=efi-part.vfat of=disk.img bs=512 count=$efi_part_size seek=$efi_part_start conv=notrunc |
| dd if=rootfs.ext2 of=disk.img bs=512 count=$root_part_size seek=$root_part_start conv=notrunc |
