How to display custom logo on start up

[ShibuThomas]

Hi All,

Is it possible to display custom logo image before showing ReadHat 
splash screen image?.

The file menu.lst in grub contains 
"splashimage=(hd0,0)/boot/grub/splash.xpm.gz".I changed the 
splash.xpm.gz.and reboot the system.
But it was not effective.

The orginal splash.xpm used in RHEL 6.0 is a black background image.But 
during the bootup time it is displaying "RED HAT LINUX ENTERPRISE" on 
that black background.How this is working?.

Can anyone help me to know how can I customize the boot up logo display.

Regards,
ShibuThomas