[CentOS] Kernel

[centos]

Centos 4 kernel's base version is 2.6.9 and Centos 5 kernel's base 
version is 2.6.18.
and I couldn't find anything in Centos mirror sites and repository ( I 
really need kernel version 2.6.18. )

Downloaded and installed kernel 2.16.18 for version 5, and installed it 
on Centos 4, it is ok but while
I am installing another software I am getting pointer exception fault.

couldn't compile 2.6.18 SROM on Centos  4,  I am getting "unifdef is 
needed" when I am running

rpmbuild -bb kernel-2.6.18

now I guess I have only two choices:
1- upgrading Centos 4 to Centos 5, which I need your opinion for the best
way of accomplishing it, considering my server is in remote location and 
I don't have access to console. ( is kick start works for remote installation 
with not access to console ? )

2- Downloading kernel from kernel.org, which I want to know if the same
version in kernel.org is identical to same version in Centos repository.
I want to make sure  I will have the same thing, to prevent weird problem
in future.

Thanks
 



Barry Brimer wrote:
>> my server is in remote location, and I don't see any grub screen, so 
>> I was wondering
>> if there is an option that I can specify the kernel that Linux to be 
>> booted at the reboot time,
>> some thing like shutdown -g0 -i6 which_kernel-options
>
> This is handled by your bootloader, which is grub.  In your 
> /etc/grub.conf file, there is a line that says "default=x" where x is 
> the number of the section from the top of the file, starting with 0.  
> You can also use the "fallback=x" statement to boot a different kernel 
> in case the default kernel is unable to boot.
>
> If you really want to be able to specify which kernel will be booted 
> on the next boot (and only the next boot) you can install the lilo 
> boot loader and use "lilo -R <image title>" and the next time the 
> system is booted, it will use that kernel, but all other times it will 
> use the default kernel.  If you are not familiar with lilo, I strongly 
> recommend that you install it on a machine locally and use it there 
> until you are comfortable with it before deploying it to a machine at 
> a remote data center.
>
> Hope this helps,
> Barry
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