On Sun, Mar 6, 2011 at 20:55, Steve Langasek <[email protected]> wrote: >> What apt, aptitude do: > >> I don't know. Do they allow an already satisfied Pre-Depends to >> complicate the upgrade path? IIRC dpkg, as an essential package, >> always gets upgraded first anyway, but I am not so familiar with this >> code.
To get that straight: It could complicate the installation: Without the Pre-Depends on dpkg it can be in any state, if you depend on it it needs to be fully configured. This is a huge difference every time you want to upgrade package A and dpkg at the same time. Without the Pre-Depends an unpack/configure order problem doesn't exist as they have no connection. Add the Pre-Depends and you have to make sure to not unpack dpkg before configuring A - or the other way around. Will be fun in case of dependency loops. Beside that it is easy to generate "interesting" trees with it like #610991. That said, as dpkg is essential it gets a preferred handling anyway in APT (and friends) and will be unpacked/configured before non-essentials, so in this specific case its more or less a no-op (in squeeze -> wheezy upgrade), but that shouldn't give a bye in general… Best regards David Kalnischkies -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
