Revelation Not Installed?

[Don Parris]

On Sat, 2006-04-15 at 13:17 +0200, Mario Vukelic wrote:
> On Sat, 2006-04-15 at 03:43 -0400, Don Parris wrote:
> > I knew I had a problem with the Update Manager when I ran the update, it
> > seemed to install, but nothing happened.  I can't remember whether it
> > displays a message after completing the update, but it just went back to
> > the normal screen.  I thought the "Install" button should be grayed out
> > after a successful update. 
> 
> I just checked, the Install button is not grayed out after applying the
> update, at least on Dapper. (I would say this is a little UI bug, and
> there are others in update-manager, like the fact that it always shows
> "your system is up to date" without checking the repositories after
> launching - I will file them if they aren't yet)
> 

My apologies for taking so long again to respond.  I just assumed
responsibilities as Editor-in-Chief at LXer.com last week, and Easter
kept me tied up this weekend as well.  Thanks for pointing out these
things.  I'll keep this in mind.

> Nevertheless, other things you wrote sound not right. The Update Manager
> has a little arrow labeled "Details" which you can open to see the
> output of the operations it does. What does it say during an update?
> 
I'll check into this and see.

> > Am I correct in assuming that the "Add Applications" and
> > Update Manager" are part of Synaptic (or tie into it somehow)?  Or are
> > they separate front-ends to apt-get?
> 
> Add Applications, Update Manager, and Synaptic, as well as the CLI
> tools, aptitude, apt-get, wajig et al., and the KDE package manager are
> all separate applications which however access the same package
> database. One could say they are all front-ends to APT, the Advanced
> Package Manager, as it is properly named.
> 

That clears that up.

> (However, besides the package information, they often collect their own
> info, which is not always shared. E.g., aptitude records which packages
> you install directly, and which are only pulled in because of
> dependencies. This way it can, e.g.,  remove packages automatically when
> the depending package, which caused their installation, is being
> removed. This information is not accessed by (all of? most of?) the
> other applications, and therefore only works reliably if you always use
> aptitude. The change logging mechanisms are also different)
> 
> However, the higher-level ones frequently call the lower-level ones. I'm
> pretty sure most use at least dpkg to handle the actual install and
> removal of the packages. I'm pretty sure wajig uses apt-for dependency
> resolution, while aptitude accesses the APT library independently from
> apt-get. Synaptic I think uses apt-get.
> You can check these by looking at a process tools such as top (on the
> CLI) or System Monitor (in Gnome) while running the package tools. And I
> guess the documentation of the packages will also mention what they do.
> 

I appreciate your help.  I will see what happens with Update Manager,
which I shouldn't see for a couple more days, as I set it to check once
a week.

Don
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