When attempting to install nethserver-backup, I get the following error. Error: Cannot retrieve repository metadata (repomd.xml) for repository: centos-base. Please verify its path and try again The install/update may have failed due to metadata caching issues. Please clean the cache by clicking t…

Which version of CentOS and NethServer are in use? cat /etc/centos-release cat /etc/nethserver-release Can you try running: yum clean all && yum update report any error message it throws :wink:

Have you resolved following @dnutan suggestions?

[image] dnutan: cat /etc/centos-release cat /etc/nethserver-release CentOS release 6.7 (Final) NethServer release 6.7 (final) Loaded plugins: changelog, fastestmirror, nethserver_events, presto Cleaning repos: centos-base centos-updates nethserver-base nethserver-updates Cleaning up Ever…

If NethServer can ping to external domains but yum -y update still fails after the clean, you can report the output of: yum -v repolist enabled

[image] dnutan: yum -v repolist enabled [root@msdp ~]# yum -v repolist enabled Loading “changelog” plugin Loading “fastestmirror” plugin Loading “nethserver_events” plugin Loading “presto” plugin Config time: 0.040 Yum Version: 3.2.29 Determining fastest mirrors nethserver-base: neth…

You can manually download and install a package to update from 6.7 to 6.8 ( release notes ): yum install http://packages.nethserver.org/nethserver/6/updates/x86_64/Packages/nethserver-release-6.8-2.ns6.noarch.rpm yum clean all yum update Unless there is some proxy (filtering/caching) or a firewall b…

Did you resolve thanks to @dnutan hints?

Not yet, I have to wait for our scheduled maintenance days to attempt it, but I will post back as soon as I attempt it! =D

[image] Adam_Reed: http://vault.centos.org/6.7/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERR OR 22 - “The requested URL returned error: 403 Forbidden” CentOS server seems to deny access to your client (yum)! C…

[root@msdp ~]# curl -H ‘Cache-Control: no-cache’ -v -A ‘urlgrabber/3.9.1 yum/3.2 .29’ http://vault.centos.org/6.7/os/x86_64/repodata/repomd.xml About to connect() to vault.centos.org port 80 (#0) Trying 146.112.61.106… con…

Cannot retrieve repository metadata

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dnutan (Marc) November 12, 2016, 11:16am 20