When the refresh operation starts we don't know how many files have to be downloaded or how much data. Apt downloads first a few files which point to others which hold more information. So the progress bar would jump arround a lot. But PackageKit doesn't support a decreasing progress.
When the refresh operation starts we don't know how many files have to be downloaded or how much data. Apt downloads first a few files which point to others which hold more information. So the progress bar would jump arround a lot. But PackageKit doesn't support a decreasing progress.