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

[silver.bullet at zoho.com]

On Mon, 10 Aug 2015 16:11:50 +0100, Colin Law 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.

The OP could install a backup of the real install in the VM. Graphics
driver, sound card and similar need a fix, but anything else wouldn't
differ.