Alsa-utils update broken

[Michael Schwendt]

On Wed, 15 Feb 2012 06:23:53 -0500, TH (Tom) wrote:

> On Wed, 15 Feb 2012 12:12:43 +0100
> Michael Schwendt wrote:
> 
> > It's really a scenario where the Fedora Updates System needs to prevent a
> > packager from pushing something. That has not been implemented yet,
> > however. And more will need to be implemented to get it right.
> 
> Yes, but it is the insane quest for perfection that has prevented
> a trivial technique from catching 99.999% of the problems:
> 
> Just run a test "yum update" on a virtual machine that has selected
> every selectable package during the install. Only when that test update
> from a test repo works cleanly would the updates actually be pushed
> to the real repo.

You cannot find the broken dep that way.

First of all, the needed packages have been available in the updates-testing
repo: alsa-lib *and* alsa-utils (which requires the new alsa-lib).

Secondly, you can only catch the broken dep prior to moving _individual
packages_ from updates-testing to updates. Moving alsa-lib plus alsa-utils
at once would have been fine. [Only the Fedora Updates System can trigger
a check fast enough when there is a request to push something to stable.
An external tool could try to warn early, but it could not interrupt a
pending move to stable.] For each package, you would need to set up your
vm and try a yum update with an added repo, which contains the package to
be moved. The hard part is to do this for hundreds of packages with
inter-dependencies.