====== Edge2 RT (Real Time) kernel  ======


We have provided a test verison of Real Time kernel for Edge2 Linux system, if you want to experience this kernel you can follow the steps below to build the images.

<WRAP important >
This is just a testing version of Real Time kernel and we haven't do the fully testing, so be aware of bugs.
</WRAP>


===== Apply patch =====

You need to apply a patch to [[kg>fenix]] to support the Real Time kernel branch.

```patch rt.patch
diff --git a/config/boards/Edge2.conf b/config/boards/Edge2.conf
index 429e299f..9b8a974c 100644
--- a/config/boards/Edge2.conf
+++ b/config/boards/Edge2.conf
@@ -35,7 +35,7 @@ case "$LINUX" in
                LINUX_DTB="arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dtb"
                [ "$LINUX_VENDOR_DIR" ] && \
                LINUX_DIR=$(realpath "$LINUX_VENDOR_DIR")
-               LINUX_GIT_BRANCH="khadas-edges-5.10.y-release-v1.0.0"
+               LINUX_GIT_BRANCH="khadas-edges-5.10.y-rt-test"
                LINUX_DEFCONFIG="${LINUX_DEFCONFIG:-kedges_defconfig}"
                SERIALCON="ttyFIQ0"
                BOOT_SCRIPT_BOARD=""
```

===== Build real time kernel images =====

You can follow [[products:sbc:edge2:development:linux:build-ubuntu| Build Ubuntu]] to build the Real Time kernel Ubuntu images.

===== Real time kernel source code =====

You can find the Real Time kernel source here: [[kg>linux/tree/khadas-edges-5.10.y-rt-test]]