The theory of upgrading from 14.04 to 15.04 using /etc/apt/sources.list

[Colin Law]

On 10 August 2015 at 16:14, William Scott Lockwood III
<scott at guppylog.com> wrote:
> On Mon, Aug 10, 2015 at 10:11 AM, Colin Law <clanlaw at gmail.com> wrote:
>> On 10 August 2015 at 16:05, Simon Quigley <sqawesome99 at gmail.com> wrote:
>>> C,
>>>
>>> So should I try it in a VM?
>>
>> Even if it appears to work in a VM that is no guarantee that it will
>> work on another machine with different packages installed.
>>
>> Why not just use a live image to do the upgrade from, or do it the
>> normal way in two steps.
>
>
> Sorry, but that's just fear mongering. Do I really need to explain how
> to duplicate the package list and sources.list on a test machine so
> that it matches your production environment?

But what is the point in doing all that in order to see whether an
update using a method that is not recommended will work (editing the
sources), when he can just use the live CD to upgrade?

Colin