Re: Alsa-utils update broken

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On Thu, 16 Feb 2012 12:05:29 +0000, MV (Marko) wrote:

> On Thursday 16 February 2012 12:17:14 Michael Schwendt wrote:
> > On Thu, 16 Feb 2012 01:22:05 +0000, MV (Marko) wrote:
> > > Even better, the virtual machine can do a "yum update --skip-broken",
> > > and then pick up yum's report on what was updated and what was skipped.
> > 
> > --skip-broken is not safe yet, is it? At least on x86_64, broken deps
> > have caused the depsolver to pull in i686 packages to satisfy dependencies.
> 
> I didn't know this can happen.

It's the primary reason why packagers enhance explicit dependencies to be
arch-specific, following the corresponding packaging guideline (from
February 2011) to use the %_isa macro.

> Can you provide some additional info (a link to 
> a bugzilla or something)?

There have been multiple ones, IIRC. A brief look at
  http://bugz.fedoraproject.org/yum
reveals:
  https://bugzilla.redhat.com/728147

With a different update set than in that ticket, you can end up with
several dozens of i686 packages getting installed because of an explicit
non-arch-specific dependency somewhere. An update takes something away,
which is needed, and the depsolver notices that an [old] i686 package
can be used to satisfy the dependency instead.
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