advice on updating kernel image

[Randall Smith <randall@tnr.cc>]

Hi,

I need some advice on updating my kernel.  I currently have kernel 
2.4.25-1 installed from the initial sarge installation and would like to 
upgrade to the current kernel version (2.4.27).  The machine is a DELL 
POWEREDGE 2500 that uses aicraid, aic7xxx modules.  These modules are 
required to boot and I am concerned that if I upgrade the kernel using 
aptitude install kernel-imagexxx, I will not be able to boot.  I'm not a 
linux newbie, but I'm not very knowledgeable of the boot process.  Any 
help would be appreciated.

Thanks.

Randall