How to install the old kernel?

Wong Kwok-hon kwokhon at
Sat Jul 5 03:29:42 UTC 2008

But it is failed to install the old kernel using -i function in rpm.
It compared the installed version....
What can I do ? Use the force option ?

Wong Kwok Hon

On Fri, Jul 4, 2008 at 9:14 PM, Simon Andrews <simon.andrews at> wrote:
>> On Thu, Jul 3, 2008 at 9:18 AM, Wong Kwok-hon <kwokhon at> wrote:
>>> Hello
>>> How to install back the old kernel? and the command is....
>>> RPM rejected my installation because it is older than current.
> Ivan Cat wrote:
>> Have you tried using --force parameter?
> Don't do that!
> Using --force is a last resort for when all else fails and you know why and
> you understand what --force is going to do.  RPM doesn't refuse to install
> packages on a whim, it's trying to stop you from screwing things up.
> For most packages you can use --oldpackage to tell it that you know the
> package you're tring to update to is older than the current package.
> Kernels are different though.  You can parallel install serveral kernels, so
> you'd usuall use rpm -i oldkernel.rpm rather than rpm -U.
> You can then use the new kernel by going into the grub menu on boot and
> selecting the older kernel from the list of available kernels.  At this
> stage you can rpm -e the newer kernel pacakage if you really want to get rid
> of it all together.
> Simon.
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