Bug#793444: apt: jessie-backports non-free i386 packages causes "Falling back to normal index file acquire" error

[Chris Kuehl <ckuehl@ocf.berkeley.edu>]

Hi David,

On Mon, Jul 27, 2015 at 11:35:39AM +0200, David Kalnischkies wrote:
> If apt detects that downloading the patches would be too wasteful
> compared to just downloading the entire index (e.g. all patches needed
> are combined bigger than the index itself) or that there are in fact no
> patches to apply as it already has the latest file it will "fail" pdiff
> and falls back to the normal index file acquire.

Thanks so much for your detailed response -- this is super helpful.

It looks like a simple workaround for the time being (assuming you don't
mind sacrificing pdiffs) is:

    echo 'Acquire::PDiffs "false";' > /etc/apt/apt.conf.d/99local

This has silenced all of our machines :)

Thanks for your work on Debian!
Chris