Show download progress for updates [answered]
When doing the system update, the download progress should be indicated in the UI. For me, there were system-packages being downloaded in the background, and this caused the "main" update seem not to be working.
So: in the System upgrade dialog, show what is being downloaded (like pkmon in the console), and what is the percentage that has been already downloaded.
See also improve downloads ui by @Yaniel for more general case.