On Sun, Oct 31, 2010 at 11:52:39AM +0100, Serafeim Zanikolas wrote:
> Hi,
>
> I see two approaches here. Run aptitude in simulation mode, parse the output,
> and ask for user confirmation if any removals are required.
>
> Alternatively, tweak aptitude to not install any packages that require
> removals. I don't know or use aptitude but from the little I've looked into
> the manual, it looks that the default setting for
> Aptitude::ProblemResolver::{Safe-Level,Resolver::Remove-Level} is already set
> to the safest value (10000). Perhaps I've missed a way to just say "don't
> install packages that require removals" (but wouldn't that defeat the whole
> point of tasksel?)
So -o Aptitude::ProblemResolver::Remove-Level=maximum seems to do the trick,
at the expense of not installing many of the package(s) that should normally
be installed for the selected task.
On my box:
aptitude -s -y install desktop gnome-desktop
has to remove swfdec-mozilla because
epiphany-browser: Conflicts: swfdec-mozilla but 0.8.8-5 is installed.
and results to:
0 packages upgraded, 468 newly installed, 1 to remove and 21 not upgraded.
With Aptitude::ProblemResolver::Remove-Level=maximum, the picture is very
different:
0 packages upgraded, 375 newly installed, 0 to remove and 21 not upgraded.
As I wrote already, I see this as defeating the point of tasksel, and would
suggest the first approach (run aptitude in simulation mode, and ask user
confirmation about pending pkgs removal).
-S
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