Bug#386741: piuparts: need to redo apt-get update after apt is upgraded from sarge

[Bill Allombert <allomber@math.u-bordeaux.fr>]

Package: piuparts
Version: 0.19-1

Hello Lars,

I am back using piuparts and I am performing Sarge to Etch upgrades.
When I try to do 'piuparts -a gnupg openoffice.org' it fails in the
last step because apt was upgraded but 'apt-get update' was not
peformed. piuparts to fail with:

  WARNING: The following packages cannot be authenticated!
    openoffice.org-l10n-en-us openoffice.org-common openoffice.org-core
    python-uno openoffice.org-writer openoffice.org-calc openoffice.org-draw
    openoffice.org-impress openoffice.org-math openoffice.org-java-common
    openoffice.org-base openoffice.org
  E: There are problems and -y was used without --force-yes

Eventually it might considered as a bug in apt:

Etch version requires extra files from the server (Release.gpg I guess)
that were not downloaded by Sarge 'apt-get update'. Further
installations/upgrades will fail until 'apt-get update' is performed
again.

Could piuparts work-around that ?

Cheers,
-- 
Bill. <ballombe@debian.org>

Imagine a large red swirl here.