標(biāo)題: Change boot logo [打印本頁(yè)] 作者: strongzgy 時(shí)間: 2008-10-14 22:28 標(biāo)題: Change boot logo
How to change Linux boot logo
from http://gentoo-wiki.com/HOWTO_Linux_Logo_Hack
As far as I know, this is the least "hacky" way you can get a custom
logo. It preserves all the previous available logos, and lets you
choose between them in the Kernel config.
It requires you to edit three files in the /usr/src/linux/drivers/video/logo
directory, and (obviously) create the image(s) you want to appear. It
only covers 224-colour logos - if you want 16-colour or black&white
ones, you'll have to figure that out on your own. I did all this
yesterday, and the kernel booted fine this morning with my new logo. I
changed Tux
to Larry
,
so that's the example I'll be using throughout this tutorial. Of course
you can change this to whatever you want - just make sure you're
consistant with your names (eg. don't accidentally switch from "LARRY"
to "BARRY" for one file).
OK, let's get down to it.
Create your image, (I used the GIMP), and save it as a PNG
(mine's called larry.png). It might be a good idea to convert it to
indexed (223 colours) first - this is going to happen later anyway, so
you may as well get it how you like it now (whether you want it
dithered, any custom palettes, etc). I should also point out that the
default images are all 80x80 pixels, but you don't have to abide by
that. As far as I know, you can go as big as you want (within reason).
Change to root, and put yourself in the directory we're working in:
$su -
$cd /usr/src/linux/drivers/video/logo/
Convert the image with the netpbm tools (media-libs/netpbm):
$pngtopnm /path/to/larry.png | ppmquant -fs 223 | pnmtoplainpnm > logo_larry_clut224.ppm
Don't worry if the existing images seem to have more than one file
each - the *.c and *.o ones get created automatically when you compile
the kernel.
Open Kconfig in your favourite editor, and insert the following section (editing the first two lines as appropriate):
File: /usr/src/linux/drivers/video/logo/Kconfig
config LOGO_LARRY_CLUT224
bool "Gentoo-ised 224-colour logo"
depends on LOGO
default y
I put it underneath the entry for LOGO_LINUX_CLUT224, so it'll appear below the default logos in the kernel setup.
Open logo.c in your favourite editor, and insert the
following sections. Everything's a bit more cosily packed in this file,
so make sure you get them in the right place. Again, change everything
that says "larry" to your chosen name. The bit between /* these
parentheses */ is a comment, and doesn't make any difference. I changed
it anyway.
File: /usr/src/linux/drivers/video/logo/logo.c
Add this to the block of similar definitions at the top of the file:
extern const struct linux_logo logo_larry_clut224;
Add this to the section headed by "if (depth >= 8) {":
#ifdef CONFIG_LOGO_LARRY_CLUT224
/* Gentoo-ised logo */
logo = &logo_larry_clut224;
#endif
Open Makefile ...blahblahblah... and add the following line to that big block of definitions at the top. You know the drill by now.
You should be able to repeat those steps however many times you like if you want to add more than one image.
Save all the files, cd down to /usr/src/linux, and follow your
normal kernel-rolling procedure - making sure that you select your new
image in the configuration:
Linux Kernel Configuration: Kernel 2.6
Device Drivers ->
Graphics Support ->
Support for frame buffer devices
VESA VGA graphics support
VESA driver type ->
Console display driver support ->
Video mode selection support
Framebuffer Console support
Logo configuration->
Bootup logo
[ ]
Your Custom Logo
...and run make. (There is no need to run make modules_install.)
Finishing Up
This section is common to both methods.
Stick your newly customised kernel in its usual place under /boot
Make sure you've got a decent framebuffer by adding vga=0x318 or similar
to your kernel's command-line:
NOTE: You can ignore this step if you selected vesafb-tng under "VESA driver type". File: /boot/grub/menu.lst or /boot/grub/grub.conf
kernel (hd0,0)/vmlinuz root=/dev/sda3 vga=0x318
When you boot into the new kernel, you should see the fruit of your labours!