From 509a969d8bc1c4d392d9cdc4873ebd4eb5d8ee4c Mon Sep 17 00:00:00 2001
From: Samuel Dionne-Riel <samuel@dionne-riel.com>
Date: Mon, 6 Jan 2020 15:36:56 -0500
Subject: [PATCH] README updates

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 14313eb..7d47cb6 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,12 @@ the eMMC as a boot device first.
 Alternatively, this u-boot can be installed to the eMMC.
 
 Installing to SPI has yet to be investigated.
+
+## Image build
+
+```
+$ ./build.sh
+$ dd if=result/sd-image/nixos-sd-image-19.09.1778.db3e8325a9b-aarch64-linux.img of=/dev/mmcblk0 bs=8M oflag=direct
+```
+
+The `build.sh` script transmits parameters to `nix-build`, so e.g. `-j0` can be used.