Zero/dev/kernel - Revision history

RadxaYuntian at 01:59, 11 January 2022

2022-01-11T01:59:46Z

RadxaYuntian at 03:42, 2 December 2021

2021-12-02T03:42:50Z

Stephen at 07:16, 9 October 2021

2021-10-09T07:16:48Z

Stephen: Created page with "{{zero_header}} {{Languages|zero/dev/kernel}} Radxa Zero > Development > Kernel === Build, pack and install Radxa Zero Ker..."

2021-10-09T06:49:18Z

Created page with "{{zero_header}} {{Languages|zero/dev/kernel}} Radxa Zero > Development > Kernel === Build, pack and install Radxa Zero Ker..."

New page

{{zero_header}}
{{Languages|zero/dev/kernel}}
[[zero | Radxa Zero]] > [[zero/dev | Development]] > [[zero/dev/kernel | Kernel]]

=== Build, pack and install Radxa Zero Kernel ===

Below is the instructions of how to build and pack Radxa Zero kernel on a Ubuntu 20.04 HOST PC.
And install kernel packages on Radxa Zero.

==== Hardware Required ====

* Radxa Zero
* USB A to C cable
* A PC/laptop running Linux(Ubuntu 18.04 or higher)

==== Install necessary tools ====

$ sudo apt-get install -y gcc-aarch64-linux-gnu device-tree-compiler libncurses5 libncurses5-dev
$ sudo apt-get install -y bc python dosfstools flex build-essential libssl-dev mtools bison flex bison git wget

Get the toolchain

$ wget https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz
$ sudo tar xvf gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz -C /opt

==== Get Kernel Source ====

$ mkdir ~/radxa-zero-sdk
$ cd ~/radxa-zero-sdk
$ git clone https://github.com/radxa/kernel.git -b linux-5.10.y-radxa-zero

==== Build Kernel ====

$ cd kernel
$ export ARCH=arm64
$ export CROSS_COMPILE=/opt/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-
$ make radxa_zero_defconfig
$ make -j8

And we will get kernel image

$ ls arch/arm64/boot/Image
arch/arm64/boot/Image

and Radxa Zero device tree.

$ ls arch/arm64/boot/dts/amlogic/meson-g12a-radxa-zero.dtb
arch/arm64/boot/dts/amlogic/meson-g12a-radxa-zero.dtb

==== Pack Kernel ====

==== Install Kernel on Radxa Zero ====

==== FAQs ====

==== Troubleshooting ====

If you have an issue, start a new post on the forum https://forum.radxa.com/c/zero.

@@ Line 47: / Line 47: @@
   $ export kv=$(make kernelversion)
   $ export debv="$kv$lv"
-  $ make bindeb-pkg -j8 LOCALVERSION=$lv KDEB_PKGVERSION=$debv
+  $ make bindeb-pkg -j8 LOCALVERSION=$lv KDEB_PKGVERSION=$debv # for packing on non Debian system you may need `DPKG_FLAGS=-d` to skip dependency check
 The generated packages are (the kernel revision name might be different, in our case it is 5.10.69):

@@ Line 5: / Line 5: @@
 === Build, pack and install Radxa Zero Kernel ===
-Below is the instructions of how to build and pack Radxa Zero kernel on a Ubuntu 20.04 HOST PC.
+Below we will show you how to build, pack, and install Radxa Zero kernel with a Ubuntu 20.04 HOST PC.
-And install kernel packages on Radxa Zero.
 ==== Hardware Required ====
@@ Line 12: / Line 11: @@
 * Radxa Zero
 * USB A to C cable
-* A PC/laptop running Linux(Ubuntu 18.04 or higher)
+* A PC/laptop running Ubuntu 18.04 or higher
-==== Install necessary tools ====
+==== Set up build environment ====
-−
- $ sudo apt-get install -y gcc-aarch64-linux-gnu device-tree-compiler libncurses5 libncurses5-dev
- $ sudo apt-get install -y bc python dosfstools flex build-essential libssl-dev mtools bison flex bison git wget
-−
-Get the toolchain
   $ wget https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz
   $ sudo tar xvf gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz -C /opt
-==== Get Kernel Source ====
+==== Get kernel source code ====
   $ mkdir ~/radxa-zero-sdk
@@ Line 30: / Line 26: @@
   $ git clone https://github.com/radxa/kernel.git -b linux-5.10.y-radxa-zero
-==== Build Kernel ====
+==== Build kernel ====
   $ cd kernel
@@ Line 37: / Line 33: @@
   $ make radxa_zero_defconfig
   $ make -j8
   $ ls arch/arm64/boot/Image
-  arch/arm64/boot/Image
+  arch/arm64/boot/Image                                                          # this is the kernel image
-−
-and Radxa Zero device tree.
-−
   $ ls arch/arm64/boot/dts/amlogic/meson-g12a-radxa-zero.dtb
-  arch/arm64/boot/dts/amlogic/meson-g12a-radxa-zero.dtb
+  arch/arm64/boot/dts/amlogic/meson-g12a-radxa-zero.dtb                          # this is the device tree blob
 ==== Pack Kernel ====
@@ Line 53: / Line 43: @@
   $ export CROSS_COMPILE=/opt/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-
   $ make radxa_zero_defconfig
-  $ export build_id="999" # make sure it's big enough so that our kernel is the newest.
+  $ export build_id="999"                                                        # make sure it's big enough so that our kernel is newer than package from apt repository
   $ export lv="-$build_id-amlogic"
   $ export kv=$(make kernelversion)
   $ export debv="$kv$lv"
-  $ make  bindeb-pkg -j8    LOCALVERSION=$lv    KDEB_PKGVERSION=$debv
+  $ make bindeb-pkg -j8 LOCALVERSION=$lv KDEB_PKGVERSION=$debv
-The generated packages are(the kernel revision name maybe different):
+The generated packages are (the kernel revision name might be different, in our case it is 5.10.69):
   $ ls  ../*.deb
@@ Line 68: / Line 58: @@
 ==== Install Kernel on Radxa Zero ====
-Copy linux-headers-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb and linux-image-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb to your Radxa Zero.
+Copy '''linux-headers-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb''' and '''linux-image-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb''' to your Radxa Zero. Then install with following commands:
-Install it on Radxa Zero.
   rock@zero:~$ sudo dpkg -i linux-headers-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb
   rock@zero:~$ sudo dpkg -i linux-image-5.10.69-999-amlogic_5.10.69-999-amlogic_arm64.deb
-Reboot you will have the new kernel booting.
+Reboot into your new kernel.
-−
-==== FAQs ====
-−
-−
-==== Troubleshooting ====
-−
-If you have an issue, start a new post on the forum https://forum.radxa.com/c/zero.