A howto backup your software configuration. "installed-software".

[Tom H]

On Mon, Jun 4, 2012 at 1:28 PM, Bas Roufs <basroufs at gmail.com> wrote:
> 2012/6/4 Lindsay Mathieson <lindsay.mathieson at gmail.com>
>> On Mon, 4 Jun 2012 03:38:29 PM Bas Roufs - message in English wrote:
>>>
>>> At Ubuntu Forums, I have written a howto - relevant for each who would
>>> like
>>> to backup his or her software configuration. If you have a laptop or
>>> desktop with a configuration you like, you can generate a list of
>>> "installed-software". At a fresh install with the same distro and
>>> version
>>> you can use this list to install all your favourite packages: either at
>>> a
>>> 2nd computer or at the original one. This saves a lot of time. For
>>> details,
>>> follow this short link:
>>> http://tinyurl.com/8yjrfpf
>>
>> Very useful, thank you!
>
> a few hours ago I added a few lines to the howto: what exactly to do before
> and after an upgrade.
> See: http://tinyurl.com/8yjrfpf

Please bottom-post and use text rather than html.

As you say in your Ubuntu Forums post, this should only be done for
the same version of Ubuntu. You can also do the following (with an
even stronger encouragement to do so in the same version!):

debconf-get-selections > selection.debconf
debconf-set-selections < selection.debconf