Hi All, I tried to perform a 'yum update' this evening and am receiving the following errors: [root@localhost tony]# yum -y update Loading "installonlyn" plugin Setting up Update Process Setting up repositories http://rpm.livna.org/fedora/6/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. http://livna.cat.pdx.edu/fedora/6/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. http://wftp.tu-chemnitz.de/pub/linux/livna/fedora/6/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. http://ftp-stud.fht-esslingen.de/pub/Mirrors/rpm.livna.org/fedora/6/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. http://mirror.atrpms.net/livna/fedora/6/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. livna 100% |=========================| 1.1 kB 00:00 http://macromedia.rediris.es/rpm/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Trying other mirror. Error: Cannot open/read repomd.xml file for repository: macromedia I tried disabling the "macromedia" repoistory think it may have just been a problem with them. Doing this produces the following out: [root@localhost tony]# yum -y --disablerepo=macromedia update Loading "installonlyn" plugin Setting up Update Process Setting up repositories Could not retrieve mirrorlist http://mirrors.fedoraproject.org/mirrorlist?repo=updates-released-fc6&arch=i386 error was [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')> Error: Cannot find a valid baseurl for repo: updates I am not sure whether it would have an affect (or produce this error), but this only started occurring after I physically changed the processor inside my laptop. I changed from an Intel 3Ghz to a 2.8Ghz Celeron (I know its downgrading but there seemed to be a fault with the better processor). Was wondering if someone might be able to shed some light onto this problem? All the best. Cheers, Tony Crouch