[ubuntu-in] Ubuntu 9.10 + Reliance NetConnect Broadband Modem (Huawei EC1260) + NetworkManager = Works Out Of The Box

[Abhinav Modi]

On Sat, Mar 20, 2010 at 1:43 PM, Ramnarayan.K <ramnarayan.k at gmail.com> wrote:
> On Sat, Mar 20, 2010 at 1:02 PM, Mehul Ved <mehul.n.ved at gmail.com> wrote:
>> On Sat, Mar 20, 2010 at 1:08 PM, Ramnarayan.K <ramnarayan.k at gmail.com> wrote:
>>> though Hardik also says
>>> #sudo apt-get upgrade
>>>
>>> and now am not sure this is a good idea, apt-get upgrades tend to
>>> break the system ??
>>
>> Since when? And which other system do you propose to upgrade packages?
>
> who me
>
> well i am runnin Ultimate (Ubuntu 9.10) and its happened in the past
> were other folks have tried to upgrade through the software centre and
> it has resulted in a broken system
>
> Correct me if somethings wrong -
>
> there is a difference between update and upgrade - and often upgrades
> are further up on the hierarchy of  corrected software, like a newer
> version whereas update is an improvement in the existing version.
>

I think you're confusing between the regular upgrades and a
"distribution upgrade"

update - generally within the same version, fetches updates about
installed software (security, patches etc) and *INFORMS* that the
system can be upgraded

upgrade - actually upgrades the sofrware. For a released version (like
Koala currently), this does not break the system ideally (unless there
are bugs in a particular s/w, and that gets broken.

dist-upgrade (also run as update-manager -d) : Upgrade your entire
ubuntu version to a new version. For eg, currently running this on a
koala system (9.10) would allow you to upgrade to 10.04 (Lucid :Lynx)
BETA 1. As Beta 2, RC, and finally stable 10.04 get released, you can
use this command when you like to upgrade from 9.10 to the then
current release. THIS can break your system, esp when upgrading to
Alpha/Beta. :)

> So if someone has tweaked their system - overs days and months of use,
> this upgrade does something that disrupts other local customizations
> and may (has) even resulted in broken systems

This depends on the particular s/w being upgraded, and less likely to
happen unless something majot has changed in the underlying design (or
you are upgrading to alpha/beta, and there are some bugs)..

>
> #sudo apt-get upgrade
> is a generic command for whatever repos are enabled in the first place.
> which takes the system to the next level rather then the improvements
> in the existing versions.
>

As mentioned above, this is a bit misleading. It takes the system to
the next improvement in the *same* version generally.

> which i think is diferent from
> # sudo apt-get dist-upgrade

Correct.

Regards
Abhinav

--
http://indimark.blogspot.com
http://www.employees.org/~abhinav/blog