9.04 Beta loading

[Thorny]

>[...]
> HS has a valid point that I had not considered -the use of the
> "full-upgrade" instead of just "upgrade". Most of the time "upgrade" is
> sufficient, as it's what I'm used to doing for so long now. But I ran
> "full-upgrade" earlier today and it had the effect of taking care of
> some packages that were "kept back" in the aptitude dialog, and cleaning
> out one or two others that weren't installable.
> 
> 
The "upgrade" is basically an alias for safe-upgrade, it is old
terminology and someday will disappear as an option, probably won't
disappear very soon though.

upgrade (safe-upgrade) will upgrade installed packages only. When a later
version of a package depends on not installed packages or conflicts with
an already installed package, the upgrade for that package won't happen.

dist-upgrade will try to resolve package conflicts automagically in a
smart way. Including installing additional required packages and
preferring packages with higher priority, thus it can install packages
that safe-upgrade can't.

The recommended method in the past was, first do an upgrade, then do a
dist-upgrade, these days, aptitude seems to be very good and forgiving.
YMMV.