1 files changed, 62 insertions, 0 deletions
diff --git a/board/pc/post-image-efi-gpt.sh b/board/pc/post-image-efi-gpt.sh
new file mode 100755
index 0000000000..d2acd8f852
--- /dev/null
+++ b/board/pc/post-image-efi-gpt.sh
@@ -0,0 +1,62 @@
+#!/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