Setting up Update Process
Setting up repositories
c5-testing                100% |=========================|  951 B    00:00
Reading repository metadata in from local files
primary.xml.gz            100% |=========================| 133 kB    00:01
c5-testing: ################################################## 368/368
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for php to pack into transaction set.
http://dev.centos.org/centos/4/testing/i386/RPMS/php-5.1.6-3.el4s1.7.i386.rpm: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')>
Trying other mirror.
Error: failure: RPMS/php-5.1.6-3.el4s1.7.i386.rpm from c5-testing: [Errno 256] No more mirrors to try.