Linux Boot Logo: Difference between revisions

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[[Image:Default_Boot.png]]
[[Image:Default_Boot.png]]


===Create an image to suitable format (C include file)===
# create a new image fitting the size of your LCD (320x240 or 480x272), with [http://www.gimp.org/ The Gimp] for example
# create a new image fitting the size of your LCD (320x240 or 480x272), with [http://www.gimp.org/ The Gimp] for example
# save it in '''PNM ASCII''' file format, let's say ''boot_logo.pnm''
# save it in '''PNM RAW''' file format, let's say ''boot_logo.pnm''
# install Netpbm package: <pre>$ sudo apt-get install netpbm </pre>
# install Netpbm package: <pre>$ sudo apt-get install netpbm </pre>
# reduce number of colors in your image to 224: <pre> $ ppmquant 224 boot_logo.pnm > boot_logo_224.pnm </pre>
# reduce number of colors in your image to 224: <pre> $ ppmquant 224 boot_logo.pnm > boot_logo_224.pnm</pre>
# convert it to C file:
# convert it to PNM ASCII format: <pre> $ pnmnoraw boot_logo_224.pnm > boot_logo_ascii_224.pnm</pre>
# convert it to C include: <pre>$ ./buildroot/build_arm/linux-2.6.23.1/scripts/pnmtologo -n armadeus_boot_logo -o ./buildroot/build_arm/linux-2.6.23.1/drivers/video/logo/logo_boot_armadeus_clut224.c -t clut224 boot_logo_ascii_224.pnm</pre>
 
===Add your file to Linux build system===
# Edit
# Add it your logo file name at line 16: <pre> obj-$(CONFIG_LOGO_ARMADEUS_CLUT224)    += logo_boot_armadeus_clut224.o</pre>
# Edit
# Add it your logo C struct name at line 36: <source lang="C">extern const struct linux_logo armadeus_boot_logo;</source>
# Add it your logo C struct name at line 110:
<source lang="C">#ifdef CONFIG_LOGO_ARMADEUS_CLUT224 <br><br>       
    /* Armadeus Linux logo */
    logo = &armadeus_boot_logo;
#endif
</source>
 
Then recompile your kernel and install it on your board:
$ make linux
 
[[Image:Custom_Boot_Logo_with_login.png]]
 
==Links==
* http://netpbm.sourceforge.net/doc/pnmquant.html

Revision as of 10:00, 25 July 2008

On this page we will explain you how to change the Boot Logo/Screen of Linux.

By default the following screen is displayed on you LCD: Default Boot.png

Create an image to suitable format (C include file)

  1. create a new image fitting the size of your LCD (320x240 or 480x272), with The Gimp for example
  2. save it in PNM RAW file format, let's say boot_logo.pnm
  3. install Netpbm package: 
    $ sudo apt-get install netpbm
  4. reduce number of colors in your image to 224: 
     $ ppmquant 224 boot_logo.pnm > boot_logo_224.pnm
  5. convert it to PNM ASCII format: 
     $ pnmnoraw boot_logo_224.pnm > boot_logo_ascii_224.pnm
  6. convert it to C include: 
    $ ./buildroot/build_arm/linux-2.6.23.1/scripts/pnmtologo -n armadeus_boot_logo -o ./buildroot/build_arm/linux-2.6.23.1/drivers/video/logo/logo_boot_armadeus_clut224.c -t clut224 boot_logo_ascii_224.pnm

Add your file to Linux build system

  1. Edit
  2. Add it your logo file name at line 16: 
     obj-$(CONFIG_LOGO_ARMADEUS_CLUT224)     += logo_boot_armadeus_clut224.o
  3. Edit
  4. Add it your logo C struct name at line 36: 
    extern const struct linux_logo armadeus_boot_logo;
  5. Add it your logo C struct name at line 110:
#ifdef CONFIG_LOGO_ARMADEUS_CLUT224 <br><br>        
    /* Armadeus Linux logo */
    logo = &armadeus_boot_logo;
#endif

Then recompile your kernel and install it on your board: 

$ make linux

Custom Boot Logo with login.png

Links

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