An everyday tale of dnf

[Chaoyi Zha]

Haha, sounds like a fun experience. I've not used dnf for many complex
tasks, but it sounds interesting.

On Wed, Apr 8, 2015, 7:14 AM Tom Hughes <tom at compton.nu> wrote:

> So this morning I cloned an up to date rawhide VM and attempted to convert
> it to F22 by using "dnf distro-sync" on it. Obviously that is a fairly
> advanced
> use case but I think one tale of what happened at the end of that process
> will
> highlight why I often find myself shouting WTF at dnf when going beyond
> basic
> install/update of packages. There were other issues along the way before I
> got
> to this point...
>
> Having eventually completed the distro-sync I wanted to check for any
> orphans
> that needed sorting out. Google told me dnf-plugins-extras was that I
> needed
> to replace package-cleanup, so I installed it, only to find that every use
> of
> dnf now reported:
>
> fedora22 [~] % sudo dnf upgrade
> Failed to synchronize cache for repo '_local' from
> 'file:///var/lib/dnf/plugins/local': Cannot download repomd.xml: Cannot
> download repodata/repomd.xml: All mirrors were tried, disabling.
>
> After shouting WTF yet again I determined that dnf-plugins-extras includes
> python-dnf-plugins-extras-local which apparently tries to use a
> non-existent
> local directory as a hidden extra repo.
>
> Fine whatever, we don't need that, so lets remove it:
>
> fedora22 [~] % sudo dnf erase python-dnf-plugins-extras-local
> Dependencies resolved.
> ============================================================
> ====================
>  Package                                Arch    Version          Repository
>
>  Size
> ============================================================
> ====================
> Removing:
>  dnf-plugins-extras                     noarch  0.0.6-2.fc22     @System
>   0
>  python-beautifulsoup4                  noarch  4.3.2-3.fc21     @System
> 605 k
>  python-dnf-plugins-extras              noarch  0.0.6-2.fc22     @System
>   0
>  python-dnf-plugins-extras-debug        noarch  0.0.6-2.fc22     @System
>  26 k
>  python-dnf-plugins-extras-local        noarch  0.0.6-2.fc22     @System
>  11 k
>  python-dnf-plugins-extras-orphans      noarch  0.0.6-2.fc22     @System
> 9.3 k
>  python-dnf-plugins-extras-repoclosure  noarch  0.0.6-2.fc22     @System
> 9.4 k
>  python-dnf-plugins-extras-repograph    noarch  0.0.6-2.fc22     @System
> 9.5 k
>  python-dnf-plugins-extras-repomanage   noarch  0.0.6-2.fc22     @System
>  12 k
>  python-dnf-plugins-extras-snapper      noarch  0.0.6-2.fc22     @System
> 4.4 k
>  python-dnf-plugins-extras-tracer       noarch  0.0.6-2.fc22     @System
> 7.7 k
>  python-html5lib                        noarch  1:0.999-5.fc21   @System
> 1.2 M
>  python-psutil                          x86_64  2.1.3-1.fc22     @System
> 518 k
>  snapper                                x86_64  0.2.5-2.fc22     @System
> 1.0 M
>  snapper-libs                           x86_64  0.2.5-2.fc22     @System
> 846 k
>  tracer                                 noarch  0.5.8-1.fc22     @System
> 272 k
>
> Transaction Summary
> ============================================================
> ====================
> Remove  16 Packages
>
> Installed size: 4.5 M
> Is this ok [y/N]: y
>
> WTF! Oh, of course, removing that removes dnf-plugins-extras and then
> everything
> else counts as auto installed and gets removed. After ceasing banging my
> head on
> the desk I let it go ahead and then add back python-dnf-plugins-extras-
> orphans
> to get the plugin I actually wanted.
>
> So now I run "dnf orphans" at last and am a little surprised to get 589
> lines of
> output:
>
> fedora22 [~] % sudo dnf orphans
> CharLS-devel-1.0-8.fc22.x86_64
> ...
> zsh-5.0.7-6.fc22.x86_64
>
> But those are F22 packages I hear you say! Indeed they are, and list
> confirms that
> they do exist in configured repositories:
>
> fedora22 [~] % sudo dnf list --showduplicates zsh
> Using metadata from Wed Apr  8 11:02:28 2015 (0:53:45 hours old)
> Installed Packages
> zsh.x86_64                       5.0.7-6.fc22
> @System
> Available Packages
> zsh.x86_64                       5.0.7-6.fc22
> @System
> zsh.x86_64                       5.0.7-6.fc22
> fedora-base
>
> WTF!
>
> Tom
>
> --
> Tom Hughes (tom at compton.nu)
> http://compton.nu/
> --
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