how to download kernel source code and rebuild the kernel

[A. Andria]

A. Andria wrote:

> Sasha Tsykin wrote:
>
>>>>>Billy Verreynne (JW) wrote:
>>>
>>>>>>>"A. Andria" <asep.andria at gmail.com> wrote:
>>>>
>>>>        
>>>>
>>>>>>>>>How to download kernel source code and rebuild the kernel source
>>>>>
>>>>>          
>>>>>
>>>>>>>code?
>>>>>>>
>>>>>>>Asked this question too myself, but seems the 'Windows vs Linux'
>>>>>>>argument is more interesting that answering technical questions..  ;-) 
>>>>>>>
>>>>>>>I've found the following - busy working through it:
>>>>>>>https://wiki.ubuntu.com/KernelBuildpackageDetailedHowto
>>>>>>>
>>>>>>>-- 
>>>>>>>Billy
>>>>>>>      
>>>>>>>
>>>>        
>>>>
>>>>>nuh. Just easier to discuss because everybody has an opinion and 
>>>>>nobody has to know anything. I'm no expert at kernel compilation, so I 
>>>>>don't really want to answer this one. However, there are a heap of 
>>>>>guides in the forums, so you might want to look there.
>>>>>
>>>>>Hope that helped a bit, and sorry I can't tell more,
>>>>>
>>>>>Sasha
>>>      
>>>
>>>I found a good guide: 
>>>http://www.ubuntuforums.org/showthread.php?t=85064. Enjoy all the wonder 
>>>of kernel compilation, although chances are that it won't make a 
>>>difference anyway in terms of noticeable performance improvements.
>>    
>>
>The needs of  recompile the kernel for me is not the performance 
>improvements but I want to add my idVendor and idProduct for my devices, 
>so the devices known by Breezy.
>
>Regards,
>Andria.
>
When kernel rebuilding is completely done. There is a message at the 
bottom of the command line :

==========================================
In order to use the new kernel image you have just installed, you
will need to reboot the machine.  First, however, you will need to
either make a bootable floppy diskette, re-run LILO, or have GRUB
installed.

Checking for ELILO...No

GRUB is installed. To automatically switch to new kernels, point your
default entry in menu.lst to /boot/arch/i386/boot/bzImage-2.6.12-8hcl
==========================================

The question is, what should i change on menu.lst ?

What's wrong in menu.lst option below ?

===============================
title           Ubuntu, kernel bzImage-2.6.12-8hcl
root            (hd0,1)
kernel          /arch/i386/boot/bzImage-2.6.12-8hcl root=/dev/hda1 ro 
quiet splash
boot

The message if I choose that option is :
Error 15 : File not found
Press any key to continue...

Any help would be appreciated.

Regards,
Andria