Thanks Manfred, you've got a really good point there, and you've found the root
of the problem. Setting to Triaged, and updating the description of the bug
according to your highly detailed comment.
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** Changed in: update-manager (Ubuntu)
Assignee: (unassigned) => Robert Roth (evfool)
** Changed in: update-manager (Ubuntu)
Status: Incomplete => Confirmed
** Description changed:
Binary package hint: update-manager
There are three places, where the update-manager states the download size of
an update:
-For every package itself
-For all packages together
-During download
- All 3 state different sizes of a download. (see attachment)
- This is also the case in Karmic.
+ The first two and the third one differ. (see attachment - the total and the
per-package difference has been fixed in the meantime, the difference between
update-manager main window and the progress windows still exists)
+
+ When doing an update with update-manager some numbers displayed on screen
come from update-manager and some from apt.
+ And now apt is displaying the numbers with decimal kilos (K=1000), and
update-manager is displaying the numbers with binary kilos (K=1024). Even if
the float problem is solved, this still gives a difference in display of about
4.8% for Megabyte numbers. (see some more details in my comment #9 above and
some of the attached pictures).
+
+ Before this bug is set to 'Fix Released' I would like to raise the
+ question if it would make sense to consistently use one and the same
+ factor for kilo/mega representation throughout all package management
+ programs. This could be done either by changing humanize_size to decimal
+ as well, or changing apt/apt-pkg/strutl.cc to binary, or even by totally
+ eliminating humanize_size and using also the apt subroutines in update-
+ manager.
+
+ As far as I can see there is even another weakness in humanize_size (at
+ least in older versions, I have not checked the most recent ones yet):
+ the localization of the decimal separator is not correct and always
+ displayed as '.' even in 'decimal point is comma' local settings as with
+ German language.
** Changed in: update-manager (Ubuntu)
Status: Confirmed => Triaged
** Changed in: update-manager (Ubuntu)
Importance: Undecided => Low
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https://bugs.launchpad.net/bugs/410310
Title:
update-manager inconsistent with download size
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