dnf update vs Software Udpates

Radek Holy rholy at redhat.com
Thu Jul 23 07:07:04 UTC 2015



----- Original Message -----
> From: "Radek Holy" <rholy at redhat.com>
> To: "Community support for Fedora users" <users at lists.fedoraproject.org>
> Sent: Thursday, July 23, 2015 9:01:24 AM
> Subject: Re: dnf update vs Software Udpates
> 
> 
> 
> ----- Original Message -----
> > From: "Ron Yorston" <rmy at frippery.org>
> > To: users at lists.fedoraproject.org
> > Sent: Wednesday, July 22, 2015 8:20:11 PM
> > Subject: Re: dnf update vs Software Udpates
> > 
> > Suvayu Ali wrote:
> > >That said, I sometimes do not understand what's the harm in getting
> > >updates few hours later.  dnf already tells you how old the metadata is
> > >when it starts, you can choose to get the latest metadata if it is too
> > >old.  So what's the big deal?
> > 
> > I certainly get the impression that dnf tells me about updates less
> > frequently than yum did.  It also seems to pull in metadata less
> > frequently.
> > 
> > In fedora-updates.repo I have:  metadata_expire=6h.  I also have the
> > dnf-makecache.timer 'masked'.
> > 
> > It's more than 6 hours since I last ran dnf but:
> > 
> > [root at vulcan rmyf22]# dnf check-update
> > Fedora 22 - x86_64 - RMY repository             131 kB/s | 6.0 kB     00:00
> > Last metadata expiration check performed 0:00:00 ago on Wed Jul 22 08:38:32
> > 2015.
> > [root at vulcan rmyf22]#
> > 
> > No updates.  It pulled in metadata for my private repo but not
> > fedora-updates.  So is it really telling me "how old the metadata is"?
> > The message just refers to the last time an expiration check was
> > performed.  Does that mean the metadata was up to date as of 0:00:00 ago?
> > Because, as we shall see, it clearly wasn't.
> 
> No, precisely, it tells you the maximum of all timestamps of caches of all
> repositories. I mean, if the cache of "fedora" is 3 hours old, the cache of
> "updates" is 2 hours old and the cache of "updates-testing" is 1 hour old,
> the output is 1 hour.
> 
> To see all the timestamps, you should use "--debug". Maybe you can help us by
> filling an RFE with a suggestion of a better message?

I mean "--verbose", sorry.

> > Let's try the --refresh option:
> > 
> > [root at vulcan rmyf22]# dnf --refresh check-update
> > Fedora 22 - x86_64 - RMY repository             113 kB/s | 6.0 kB     00:00
> > Last metadata expiration check performed 0:00:00 ago on Wed Jul 22 08:39:01
> > 2015.
> > [root at vulcan rmyf22]#
> > 
> > Still no updates.  Time for a bigger hammer (don't try this at home or
> > offer it as advice to newbies):
> > 
> > [root at vulcan rmyf22]# rm -rf /var/cache/dnf/x86_64/22/updates*
> > [root at vulcan rmyf22]# dnf check-update
> > Fedora 22 - x86_64 - Updates                    774 kB/s |  12 MB     00:16
> > Last metadata expiration check performed 0:00:16 ago on Wed Jul 22 08:40:02
> > 2015.
> > 
> > environment-modules.x86_64                 3.2.10-16.fc22
> > updates
> > ...
> > 
> > Plus 55 other updates.  What's going on?
> > 
> > Ron
> > --
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> 
> --
> Radek Holý
> Associate Software Engineer
> Software Management Team
> Red Hat Czech
-- 
Radek Holý
Associate Software Engineer
Software Management Team
Red Hat Czech


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