From 81377a35d9dd4cdfd04ac33e0c8116b4201b3afc Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Sat, 20 Sep 2025 10:48:21 +0200
Subject: Extract kernel

---
 README.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/README.md b/README.md
index 35dc46e..6b8f0f7 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,30 @@ cd build
   RELEASE=jammy  # Doesn't matter for kernel-only
 ```
 
+## Extracting Kernel from Built Image
+
+After the build completes, extract the kernel and related files:
+
+```bash
+# Your built image
+IMAGE="output/images/Armbian_*.img"
+
+# Mount the image locally using loop device
+sudo losetup -P /dev/loop0 $IMAGE
+sudo mkdir -p /mnt/armbian
+sudo mount /dev/loop0p1 /mnt/armbian
+
+# Backup kernel and boot files to current directory
+sudo tar czf armbian-kernel.tar.gz -C /mnt/armbian \
+  boot/ \
+  lib/modules/ \
+  lib/firmware/
+
+# Unmount
+sudo umount /mnt/armbian
+sudo losetup -d /dev/loop0
+```
+
 ## Notes
 
 - The kernel build uses Armbian's build system to generate a compatible kernel for the Odroid C4
-- 
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