dnf metalink issue: Fedora Updates repo

[Steven P. Ulrick]

Hello, Everyone
If I run "dnf upgrade" with the "metalink" line uncommented in 
"/etc/yum.repos.d/fedora-updates.repo", the result is as follows:

[root@afolkey2 ~]# dnf upgrade
rpm.livna.org for 20 - x86_64                                   3.8 kB/s 
| 3.4 kB     00:00
Fedora 20 - x86_64 - VirtualBox                               168 kB/s 
|  52 kB     00:00
Open source multiplatform video transcoder          28 kB/s | 7.2 kB     
00:00
RPM Fusion for Fedora 20 - Free - Updates              1.6 MB/s | 480 
kB     00:00
RPM Fusion for Fedora 20 - Nonfree - Updates        599 kB/s | 172 
kB     00:00
Adobe Systems Incorporated                                   12 kB/s | 
1.8 kB     00:00
rpm.livna.org for 20 - x86_64 - Source                    6.5 kB/s | 1.9 
kB     00:00
google-chrome - 64-bit                                            49 
kB/s | 3.7 kB     00:00


Then, after a few minutes of no apparent activity, the following happens:
Error: Failed to synchronize cache for repo 'updates' from 
'https://mirrors.fedoraproject.org/metalink?repo=updates-released-f20&arch=x86_64':

Cannot download repomd.xml: Cannot download repodata/repomd.xml: All 
mirrors were tried

In that example, "dnf upgrade" fails.

If I run "yum upgrade", the result is as follows:
Loaded plugins: auto-update-debuginfo, langpacks
updates/20/x86_64/metalink        |  14 kB  00:00:00
updates                                        | 4.9 kB 00:00:00
http://mirror.symnds.com/distributions/fedora/updates/20/x86_64/repodata/...: 
[Errno -1] repomd.xml does not match metalink for updates
Trying other mirror.

After that last message, a similar message is displayed for each mirror.

In that example, "yum update" succeeds.

BUT, it I comment out 
"metalink=https://mirrors.fedoraproject.org/metalink?repo=updates-released-f$releasever&arch=$basearch"

in "/etc/yum.repos.d/fedora-updates.repo" and un-comment
"baseurl=http://download.fedoraproject.org/pub/fedora/linux/updates/$releasever/$basearch/",

"dnf upgrade" and "yum update" proceed normally.

Is anyone else having this issue? I have checked this list for the past 
few days for this issue, and I have not seen it mentioned.

To sum this up, if I use "baseurl" instead of "metalink" in 
"/etc/yum.repos.d/fedora-updates.repo" "dnf upgrade" succeeds.
If I use "metalink" instead of "baseurl" in 
"/etc/yum.repos.d/fedora-updates.repo" "dnf upgrade" fails.

Thank you,
Steven P. Ulrick

[Radek Holy]

----- Original Message -----
>  From: "Kevin Fenzi" <kevin(a)scrye.com&gt;
>  To: users(a)lists.fedoraproject.org
>  Sent: Sunday, May 10, 2015 5:57:58 PM
>  Subject: Re: dnf metalink issue: Fedora Updates repo
>  
>  There's an issue with the f20 updates repo metalink in mirrormanager.
>  
>  We were hoping to have it fixed up quickly, but it's of course proving
>  more difficult than it seems at first. ;(
>  
>  Anyhow, folks are working on it, and we hope to have it fixed later
>  today.
>  
>  I'd suggest just waiting to grab updates until then, or if you need
>  something right away from the f20 updates repo you can edit your repo
>  file and comment the metalink and uncomment the baseurl. If you do
>  that, please remember to move it back once this is fixed as the
>  metalink provides normally many advantages over the baseurl. 
Yes, one of the advantages is that it provides a checksum of "repomd.xml". And
that's why was DNF failing (https://bugzilla.redhat.com/show_bug.cgi?id=1219283) --
the checksum of "repomd.xml" stored on the mirrors did not match the checksum
provided by the metalink. Personally, I'd be afraid of switching to baseurl because of
that.

>  Sorry for the trouble.
>  
>  kevin
>  
>  --
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>   
-- 
Radek Holý
Associate Software Engineer
Software Management Team
Red Hat Czech

[Kevin Fenzi]

There's an issue with the f20 updates repo metalink in mirrormanager. 

We were hoping to have it fixed up quickly, but it's of course proving
more difficult than it seems at first. ;( 

Anyhow, folks are working on it, and we hope to have it fixed later
today. 

I'd suggest just waiting to grab updates until then, or if you need
something right away from the f20 updates repo you can edit your repo
file and comment the metalink and uncomment the baseurl. If you do
that, please remember to move it back once this is fixed as the
metalink provides normally many advantages over the baseurl. 

Sorry for the trouble. 

kevin