* Resynchronise with Debian. Remaining changes: - Use and depend on the Ubuntu keyring. - Enable the restricted component by default, unless apt-setup/restricted is preseeded to false. - Set up the default sources.list to look in -updates and -security (the latter from apt-setup/security_host) as well as the unadorned suite; also -proposed if apt-setup/proposed is true. - Use Ubuntu kernel image names. - Allow preseeding base-installer/kernel/override-image to force a given kernel to be used. - Install busybox-initramfs rather than busybox. - Revert Joey's patch to call base-installer.d hooks after running debootstrap, which broke console-setup's expectation of being able to insert its configuration file into /target before console-setup is installed by debootstrap. - Add armel/imx51, armel/dove, and armel/omap subarchitectures. - Install kernel headers to match the kernel. This may be overridden by setting base-installer/kernel/headers to false. - Add base-installer/kernel/backports-modules template, which may be preseeded to install selected linux-backports-modules-* packages. - Run dpkg with --force-unsafe-io during installation. * Explicitly drop code supporting -386 kernels, which were dropped from Ubuntu some time ago.