dnf update vs Software Udpates

[Radek Holy]

----- 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?

> 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
> --
> users mailing list
> users at lists.fedoraproject.org
> To unsubscribe or change subscription options:
> https://admin.fedoraproject.org/mailman/listinfo/users
> Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
> Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
> Have a question? Ask away: http://ask.fedoraproject.org
> 

-- 
Radek Holý
Associate Software Engineer
Software Management Team
Red Hat Czech