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

[Bret Busby]

On 11/08/2015, Tom H <tomh0665 at gmail.com> wrote:
> On Sun, Aug 9, 2015 at 7:11 PM, Simon Quigley <sqawesome99 at gmail.com>
> wrote:
>>
>> Has anyone ever tried upgrading right to 15.04 by just editing
>> /etc/apt/sources.list and replacing where it says trusty with vivid, then
>> doing sudo apt-get update && sudo apt-get dist-upgrade?
>>
>> Does it work? If it doesn't work, why?
>
> Of course that it works!
>
> It's best to do it in stages; but do-release-upgrade takes care of all
> this for you.
>

Discussion has occurred regarding the isssue of upgrading from an LTS
release, to a "normal" (?) release; 14.04 LTS to 15.04.

I am wondering, as the current "normal" (?) release is 15.04, then, in
a couple of months time, 15.10 is due to be released, then, in April
next year, 16.04 LTS is due to be released.

What I am wondering, is, can a "normal" (?) release (eg 15.04) be
upgraded to an LTS release (16.04 LTS, when it is released), by simply
using the "do-release-upgrade", or, in the Software Updater, choosing
to update the version, from 15.04, to 16.04 LTS?

In this, I have Ubuntu-mate 15.04 installed, and, Ubuntu 14.04 LTS
(with the mate desktop environment), and I am wondering whether, when
the time comes, simply updating the version (from 15.04 to 16.04 LTS),
would be appropriate, or, whether I would be better to perform a clean
installation (I have a free, unused partition, into which I can
install an operating system).

Thank you in anticipation.


-- 
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

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