Modify Linux boot image (Penguin)

 

Environment Description:

Linux Kernel version: 2.6.35

Board: WY-S5PV210

I, Follow the steps below to create a boot image

1,
Download an 80 x image from Photoshop or the Internet.

2,
Use the gimp tool to convert the image to a 224-color image in ppm format

(1)
Open the image to be converted

(2)
Select image> mode> index, and select 224 for the maximum number of colors.

(3) Select File> Save

Enter linuxlogo. ppm as the name, click OK, and select "ASCII" in the pop-up dialog box"

Click Save to generate a 224-color ppm image.

 

II, Modify Related Files

Assume that you have switched to the Linux kernel root directory.

(1)Rename linuxlogo. PPM to logo_mylogo.clut224.ppm and copy it to the logo directory.

$ Sudo MV linuxlogo. ppm
Logo_mylogo.clut224.ppm

$ Sudo CP logo_mylogo.clut224.ppm Drivers/Video/logo

(2)ModifyLogo. c

Use your favorite tools (Vi, gedit, etc.) to open drivers/Video/logo. c

Find if (depth> = 8) in the fb_find_logo () function and add

# Ifdef config_logo_mylogo_clut.pdf
/* My Linux logo */
Logo = & logo_mylogo_clut.pdf;
# Endif

(3) Modify makefile

Open Drivers/Video/logo/makefile

Join

OBJ-$ (config_logo_mylogo_clut.pdf) + = logo_mylogo_clut224.o

(4)Modify kconfig

Open Drivers/Video/logo/kconfig

Add

Config
Logo_mylogo_clut.pdf
Bool "224-color my Linux logo"
Default y

(5)Modify linux_logo.h

Open include/Linux/linux_logo.h

Add

Extern const struct linux_logo
Logo_mylogo_clut.pdf;

(6)Modify config

Open. config

Modify as follows:

# Config_logo_linux_clut.pdf = y

Config_logo_mylogo_clut.pdf = y

3. Compile and burn New kernels

 

# Make. config

# Make zimage

Write the raw zimage to the Development Board to view the new Linux boot image.