Re: Is upgrading the kernel necessary

The HP DL380 system currently has the following kernel packages
installed:-

[root]# rpm -qa | grep -i kernel
kernel-utils-2.4-8.37
kernel-2.4.21-4.EL
kernel-source-2.4.21-4.EL
kernel-smp-2.4.21-4.EL
kernel-pcmcia-cs-3.1.31-13


I have registred the system with RHN. 

So I should only upgrade the kernel packages currently installed on my
system?

Do I need to modify the grub.conf file after upgrading the kernel?

Also by upgrading the kernel will I be able to revert back to the
previous version of the kernel and if so I how would I do that?









On Mon, 18 Jun 2007 10:32:18 -0400 Francis Swasey
<[email protected]> wrote:
> On 6/18/07 10:18 AM, d.qureshi-7yFXA2EciJlaa/[email protected] wrote:
> > I have just updated the patches on a HP Prolient DL380 G3 from RHEL AS 3
> (Taroon) to AS 3 update 8.
> > 
> > I ran up2date -u. However, the kernel was not been upgraded.
> 
> By default the kernel is marked skip so people who run up2date 
> automatically don't randomly replace their kernel.
> 
> > 
> > Should I be upgrading the kernel or not?
> 
> Unless you have a specific need to stay at a specific version -- yes.
> 
> > 
> > If I should upgrade the kernel how do I do this and will there be any impact
> on the system?
> 
> You need to run "up2date -fu" to force it to upgrade even the skipped 
> packages.  Yes, you will have to reboot your system to get the new 
> kernel actually in production.
> 
> -- 
> Frank Swasey                    | http://www.uvm.edu/~fcs
> Sr Systems Administrator        | Always remember: You are UNIQUE,
> University of Vermont           |    just like everyone else.
>    "I am not young enough to know everything." - Oscar Wilde (1854-1900)
> 
>   [[smime.p7s]]

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