backports repo unavailable ?

English Install/Boot/Login
1 
zypper ref
...
Retrieving repository 'Update repository of openSUSE Backports' metadata ...........................[error]
Repository 'Update repository of openSUSE Backports' is invalid.
[repo-backports-update|http://download.opensuse.org/update/leap/15.4/backports/] Valid metadata not found at specified URL
History:
 - File './repodata/22cb04445298996d1538dab44e7f8290978437cc432f4ebc0fad083c58c3fa49-deltainfo.xml.gz' not found on medium 'http://download.opensuse.org/update/leap/15.4/backports/'
 - Can't provide ./repodata/22cb04445298996d1538dab44e7f8290978437cc432f4ebc0fad083c58c3fa49-deltainfo.xml.gz

Please check if the URIs defined for this repository are pointing to a valid repository.
Skipping repository 'Update repository of openSUSE Backports' because of the above error.

zypper clean

did not help

2 
boven:~ # zypper ref
Repository 'Updates from openSUSE Backports' is up to date.                                                   
Repository 'Main (OSS)' is up to date.                                                                        
Repository 'Update (OSS)' is up to date.                                                                      
Repository 'Main (Non-OSS)' is up to date.                                                                    
Repository 'Update (Non-OSS)' is up to date.                                                                  
Repository 'Packman' is up to date.                                                                           
Repository 'Updates from SUSE Linux Enterprise 15' is up to date.                                             
All repositories have been refreshed.
boven:~ #

So no problem here.

Did you retry?

3

yes, more than 3-times

4

You have the same URL that I have:

henk@boven:/etc/zypp/repos.d> grep url *.repo | grep /backports/
backports-update.repo:baseurl=http://download.opensuse.org/update/leap/$releasever/backports/
henk@boven:/etc/zypp/repos.d>

What when looking at it with a browser?

5

I’m guessing that the repo is in the process of being updated…

An error occurred during repository initialization. [backports|https://download.opensuse.org/update/leap/15.4/backports/] Valid metadata not found at specified URL History: - SKIP request: User-requested skipping of a file - Can’t provide ./repodata/1ff42b96972eea5fdd77d4eca3285e024e5dea34f91d3bf0e217bc2f2cb8ff27-deltainfo.xml.gz - File ‘./repodata/1ff42b96972eea5fdd77d4eca3285e024e5dea34f91d3bf0e217bc2f2cb8ff27-deltainfo.xml.gz’ not found on medium ‘https://download.opensuse.org/update/leap/15.4/backports/’

From a browser:

Resource is no longer available!

The requested URL is no longer available on this server and there is no forwarding address. Please inform the author of the referring page that the link is outdated.

If you think this is a server error, please contact the webmaster.
Error 404

Try later in the day…

6

Which does not mean you are redirected to the same mirror.

7

Correct, but this should tell the OP that it is not a general fault.

8

I ran into a problem with that repo yesterday. I tried again about 1 hour later, and everything was then fine.

9

it was fixed after some time, thanks for replies.