upgrade 12.04->14.04

[Colin Law]

On 27 September 2014 21:19, steve reilly <steve at reillyblog.com> wrote:
>
>> Can you explain why you want to upgrade just the kernel?  Or perhaps
>> that is not what you mean.  An upgrade to Ubuntu 14.04 does much more
>> than just upgrade the kernel.  It upgrades all the other software too,
>> so no, you cannot easily go back, you would have to re-install 12.04.
>>
> basically what i was asking was, when i boot, im given 5 or 6 different
> kernels to boot.  top one being the most recent.  3.13something.  if i boot
> this kernel and run the upgrade, do all the previous kernels disappear?  or
> do they stay at 12.04?

As far as I know all the previous kernels will be uninstalled, as will
be the 12.04 one that you are running when you start the upgrade.  You
will be left with just the latest 14.04 kernel.  I don't know whether
kernels from 12.04 would run under 14.04, I think probably not.

Colin