On Wed, 5 Oct 2016 10:56:35 -0500 Bruno Wolff III <br...@wolff.to> wrote:
> On Tue, Oct 04, 2016 at 20:42:11 -0700,
> Adam Williamson <adamw...@fedoraproject.org> wrote:
> >
> >I'd say broadly speaking both, but the most disruptive and
> >potentially catastrophic effect is when the update process itself
> >crashes or is killed. Because of how RPM transactions work, this
> >generally leaves you with RPM convinced you have two copies of a
> >bunch of packages installed, and cleaning that up is kind of
> >tedious. The more processes are running underneath the dnf process,
> >the more likely the dnf process is to get knocked out by something
> >else. (I don't know if dnf could sensibly be changed to mitigate
> >this issue; it's really not my focus. I just want to try and help
> >real users deal with the software as it currently exists.)
>
> package-cleanup --cleandupes still works on f25, though I am not sure
> what the proper dnf version of this is. (I needed this about a week
> ago when an issue triggered by a kernel problem I don't fully
> understand caused an update to be terminated.) You can usually get
> the updates to finish and then clean up the duplicates. Sometimes it
> gets trickier.
From 'man yum2dnf':
Detailed table for package-cleanup replacement:
┌─────────────────────────────┬─────────────────────────────┐
│package-cleanup --dupes │ dnf repoquery
--duplicated │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --leaves │ dnf repoquery
--unneeded │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --orphans │ dnf repoquery
--extras │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --oldkernels │ dnf repoquery
--installonly │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --problems │ dnf repoquery
--unsatisfied │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --cleandupes │ dnf remove
--duplicated │
├─────────────────────────────┼─────────────────────────────┤
│package-cleanup --oldkernels │ dnf remove
--oldinstallonly │
└─────────────────────────────┴─────────────────────────────┘
> >The one thing I absolutely would advise against: don't do an update
> >over ssh! Unless you use screen or tmux, of course. But just sshing
> >in and running an update is a great way to potentially hit trouble.
>
> This isn't as bad as you might think. While I mean to use screen, I
> often forget and very rarely have problems as restarting sshd doesn't
> shut down existing ssh sessions.
Right, thats the thing... 99.9% of the time you are just fine. :)
kevin
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