On Mon, 24 Mar 2008, Eugene Teo wrote:
<quote sender="Gian Paolo Mureddu">
> Ian Weller escribió:
>> How does Ubuntu do it? I remember upgrading my sister's computer with
>> one click, and it appeared to work perfectly -- until she decided to
>> unplug the computer during the upgrade. >.< I have no clue what the end
>> result would've been, but it was probably the best upgrade interface
>> ever.
>
> I'm not sure how does Ubuntu do it, but it shouldn't be too hard to find
> out by dissecting it and going through the sources. At any rate it has been
> brought up before and the general consensus is that upgraded systems do
> suffer performance degradation in one way or another, mainly due to
> settings sticking from previous versions and the like. Still there should
> be a way to upgrade without suffering that performance hit, sadly I
> couldn't say how to do it. Every time it is mentioned, though, is
> disregarded; or at least, that's what it looks like.
A fallback system would be nice, but it needs to be an option, because
not everyone has enough hard drive space.