Bug#533265: It would be good to fix this while people are still upgrading

[Osamu Aoki <osamu@debian.org>]

Hi,

On Fri, Jan 22, 2010 at 02:50:02PM +0100, Nicolas François wrote:
> On Fri, Jan 22, 2010 at 10:18:22PM +0900, Osamu Aoki wrote:
> > On Thu, Jan 21, 2010 at 12:08:01PM -0600, Karl O. Pinc wrote:
> > > ...   It'd be nice to fix the upgrade document
> > > while people are still upgrading.
...
> http://www.fr.debian.org/releases/stable/i386/release-notes/ch-upgrading.html#aptupgrade1st
> 
> I think Karl indicates that there will be no more oldstable support soon,
> so some people might think about urging the oldstable -> stable upgrade.
> 
> The problem with this bug is that there are no generic upgrade path.
> The upgrade may fail with apt-get or with aptitude.
> 
> I made tested with the various default Debian installs, and I could not
> find a generic upgrade path that always work.

If there is no generic way found, we can not update ...  We need
solution before asking doc changes.

I think what is there is quite decent.

I remember there were some discussion while releasing this note.

Basically, I think resonable thing to do is:

1. make minimum system by removing desktop apps and unused part
2. stop server services
3. dist-upgrade as described
4. Install desktop

This should work for most systems.

(Some desktop apps tends to have funky dependencies which canfuses
resolver.  Do you really had issues without desktop systems?)

If it is super high priority server, hot migration is bad idea anyway.

Osamu