Load USB ethernet driver before running ipxe in pxestick

scripts/pxestick.sh

@@ -2,14 +2,93 @@
 
 set -e
 
+BUILD_TYPE=RELEASE
+#BUILD_TYPE=DEBUG
+TOOLCHAIN=GCC5
+
+pushd edk2 >/dev/null
+  make -C BaseTools --jobs="$(nproc)"
+  source edksetup.sh --reconfig
+
+  build \
+    -a X64 \
+    -b "${BUILD_TYPE}" \
+    -t "${TOOLCHAIN}" \
+    -p "OptionRomPkg/OptionRomPkg.dsc"
+  DRIVER="${PWD}/Build/OptionRomPkg/${BUILD_TYPE}_${TOOLCHAIN}/X64/Ax88772.efi"
+
+  build \
+    -a X64 \
+    -b "${BUILD_TYPE}" \
+    -t "${TOOLCHAIN}" \
+    -p "ShellPkg/ShellPkg.dsc"
+  SHELL="${PWD}/Build/Shell/${BUILD_TYPE}_${TOOLCHAIN}/X64/Shell.efi"
+popd >/dev/null
+
 rm -rf build/pxestick
 mkdir -p build/pxestick
 cd build/pxestick
 
 wget -O ipxe.efi http://boot.ipxe.org/ipxe.efi
-dd if=/dev/zero of=usb.img.partial bs=512 count=2048
+
+cat > startup.nsh <<EOF
+@echo -off
+
+if exist "fs0:driver.efi" then
+    fs0:
+endif
+
+if exist "fs1:driver.efi" then
+    fs1:
+endif
+
+if exist "fs2:driver.efi" then
+    fs2:
+endif
+
+if exist "fs3:driver.efi" then
+    fs3:
+endif
+
+if exist "fs4:driver.efi" then
+    fs4:
+endif
+
+if exist "fs5:driver.efi" then
+    fs5:
+endif
+
+if exist "fs6:driver.efi" then
+    fs6:
+endif
+
+if exist "fs7:driver.efi" then
+    fs7:
+endif
+
+if exist "fs8:driver.efi" then
+    fs8:
+endif
+
+if exist "fs9:driver.efi" then
+    fs9:
+endif
+
+if not exist "driver.efi" then
+    echo "Did not find driver.efi"
+    exit 1
+endif
+
+load "driver.efi"
+"ipxe.efi"
+EOF
+
+dd if=/dev/zero of=usb.img.partial bs=512 count=4096
 mkfs.vfat usb.img.partial
 mmd -i usb.img.partial efi
 mmd -i usb.img.partial efi/boot
-mcopy -i usb.img.partial ipxe.efi ::efi/boot/bootx64.efi
+mcopy -i usb.img.partial "${SHELL}" ::efi/boot/bootx64.efi
+mcopy -i usb.img.partial "${DRIVER}" ::driver.efi
+mcopy -i usb.img.partial ipxe.efi ::ipxe.efi
+mcopy -i usb.img.partial startup.nsh ::startup.nsh
 mv usb.img.partial usb.img