On my newly installed FC-4, I am, without success, trying # yum list updates I have modified fedora-updates.repo and fedora-updates-testing.repo in various ways. A sample follows. Other variations involved applying the '#' to different lines. [updates-released] name=Fedora Core $releasever - $basearch - Released Updates baserul=http://redhat.secsup.org/fedora/core/updates/4/i386/ #baseurl=http://download.fedora.redhat.com/pub/fedora/linux/core/updates/$re leasever/ $basearch/ #mirrorlist=http://fedora.redhat.com/download/mirrors/updates-released-fc$re leasever enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fed Here are some diagnostics I have gotton: http://redhat.secsup.org/fedora/core/updates/4/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')> Trying other mirror. Cannot open/read repomd.xml file for repository: updates-released failure: repodata/repomd.xml from updates-released: [Errno 256] No more mirrors to try. Cannot find a valid baseurl for repo: updates-released Thanks in advance for your help. Mike. -- Michael D. Berger m.d.berger@xxxxxxxx