Differences

This shows you the differences between two versions of the page.

--- products:sbc:common:configurations:change-boot-logo [2022/07/06 06:25]
frank
+++ products:sbc:common:configurations:change-boot-logo [2024/12/18 02:25] (current)
xiong [kernel logo]
@@ Line 5: / Line 5: @@
 This document mainly introduces how to Change Boot Logo. The document is divided into two parts, the first part is for the Ubuntu platform, and the second part is for the Android platform.
-===== Ubuntu =====
+===== Linux =====
 <WRAP info >
@@ Line 21: / Line 21: @@
 You can use Terminal to check the default logo image format:
-```sh
+```shell
 $ file /usr/share/fenix/logo/logo.bmp
 /usr/share/fenix/logo/logo.bmp: PC bitmap, Windows 3.x format, 500 x 500 x 24, image size 750002, resolution 2834 x 2834 px/m, cbSize 750056, bits offset 54
 ```
-You can replace the default logo with your own BMP image.
+You can replace the default logo with your own **BMP** image.
-==== Kernel Logo ====
+==== Linux Kernel Logo ====
 Use the netpbm tool to convert png images to ppm images.
-```sh
+```shell
 $ pngtopnm linux_logo.png > linux_logo.pnm
 $ pnmquant 224 linux_logo.pnm > linux_logo_clut224.pnm
@@ Line 43: / Line 43: @@
 ==== Ubuntu Logo ====
-The Ubuntu logo file is located at /usr/share/fenix/logo/logo.png, replace the .png file to change the Ubuntu boot logo.
+The Ubuntu logo file is located at ''/usr/share/fenix/logo/logo.png'', replace the .png file to change the Ubuntu boot logo.
+If you’ve [[/products/sbc/vim3/development/linux/build-ubuntu| built the image with Fenix]], replace the file ''archives/logo/png/logo.png'' to change the logo.
-If you’ve [[/products/sbc/common/development/build-ubuntu| built the image with Fenix]], replace the file ''archives/logo/png/logo.png'' to change the logo.
 ===== Android =====
+Because RK merged the logo partition with the system partition into a single super partition after Android 10, there is no logo partition available to dynamically modify the boot logo. This means that a complete firmware build is required to achieve this operation. Now, we have added a new custom partition to facilitate the dynamic update of the logo.
+==== Logo Format ====
+<WRAP info >
+  *Where is original logo file
+Logo file is stored in the kernel-6.1/logo.bmp directory in android code.
+  *BMP format, should be:
+    *16bit RGB565 BMP format
+  *Resolution <= 1080P (1920 * 1080)
+</WRAP>
+==== Kernel Logo ====
+We use the adb command to push the prepared logo.bmp to the motherboard path /vendor/custom and then restart the device.
+```shell
+$ adb root
+restarting adbd as root
+$ adb remount
+AVB verification is disabled, disabling verity state may have no effect
+Remounted /system as RW
+Remounted /vendor as RW
+Remounted /odm as RW
+Remounted /system_dlkm as RW
+Remounted /system_ext as RW
+Remounted /vendor_dlkm as RW
+Remounted /odm_dlkm as RW
+Remounted /product as RW
+Remount succeeded
+$ adb push logo.bmp /vendor/custom
+logo.bmp: 1 file pushed, 0 skipped. 655.0 MB/s (4147272 bytes in 0.006s)
+```
+==== Updage the logo by upgrate whole firmware ====
+) replace kernel-6.1/logo.bmp bmp file
+) build upgrate package
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh && lunch kedge2-userdebug
+$ ./build.sh -UCKAu
+```
+) Burn upgrate package update.img to your device you can refer How To Upgrate ,restart then you can see the new boot logo

Khadas Docs

User Tools

Site Tools

Differences

Page Tools