[root@localhost ~]# yum -y install postgresql-server Loading "installonlyn" plugin Setting up Install Process Setting up repositories Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=i386&repo=extras error was [Errno 4] IOError: <urlopen error (-3, '\xe5\x90\x8d\xe5\x89\x8d\xe8\xa7\xa3\xe6\xb1\xba\xe6\x99\x82\xe3\x81\xae\xe4\xb8\x80\xe6\x99\x82\xe7\x9a\x84\xe3\x81\xaa\xe5