This mostly reverts my most recent chroot_local-packages/preferences commit
as I found problems when re-running parts of the build: as the pinning
stanza was removed, calls to "apt-get upgrade" from within live-helper
would remove replacement packages placed in chroot_local-packages.
This isn't 100% foolproof - running apt-get upgrade on the binary image may
still attempt to remove replacement packages (heavy users of this should
probably be using their own repo for this sort of thing anyway).
This reverts config/chroot_local-packages to almost original semantics by
giving any package in chroot_local-packages a priority of 1001, allowing
it to "downgrade" packages and generally override the standard APT sources.
I think this follows the idea of this directory more and is likely to be
more useful with this setup - rebuilding a package simply to bump a version
number or keeping a custom apt_preferences(5) file around kinda sucks,
especially as it is often used as a temporary workaround.
This patch installs (almost) all chroot packages by queueing the package
names into a single file and then installing that. It depends on my
previous patch to install local packages by using an APT mirror.
This speeds up image build causes even greater speedups once more packages
adopt triggers.
(Packages installed by debconf preseeding are not touched, nor are packages
installed by tasks.)
Daniel Baumann
Antonio Terceiro
Chris Lamb