Thanks Ed Greshko; > Exactly what are you trying to update via yum? No, I routinely use "up2date" to keep my RHEL4 machine up to date. > You can't update the > base packages of RHELv4 via yum since RH does not support yum at that > release level. I know that. However, I need to install another software,which require yum. So, I have to install yum before the installation of the software. What I need is the URL to solve the IOError: <urlopen error >. Thanks. Mark -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines