> 2) if there is no delta, it will "download" the new package (this may be > because, the delta was too big, or the package was too small, or, some > error) > 3) after all available deltas have been applied, it may exit, or continue > downloading all needed new .deb > This behavior can be tuned with the option --deb-policy option, see > man page.
I guess my question is: why does it ever download the `.deb` package? [..time passes..] Oh.. could it be that you do it as an optimization: if we're still applying patches, rather than leave the network unused and since we can't start `apt` yet, download some of the remaining packages, so the (presumed) subsequent `apt` will be faster? >> Q uestions that I can't answer based on the above output: >> - I don't see any other mention of "avahi-daemon" than the "created" line, >> so how was it created? > by downloading the delta and applying it But in the output there was no mention of downloading anything related to that package, whereas most other packages have two lines, one about the download and one about the creation (in my sample out, this is the case for `libreoffice-calc`). >> There's no subsequent matching "created" line, so IIUC it was >> downloaded in non-delta form, which I'd expect `debdelta-upgrade` >> never does (leaving it to `apt upgrade` instead). > actually, it does I did not expect that behavior. >> - I'd appreciate seeing the actual size of the downloaded data on each >> line (maybe instead of the time?). > add some -v options Duh, can't believe I didn't think of that. This said, with a `-v` I get more output than what I'd like, but well, one can't satisfy everyone. Stefan