killall yum
service yum restart
sh lates

yum install gcc && yum install gcclib* && yum install glibc

login as: root
password:
Last login: Thu Jun 21 17:56:33 2007
[root@localhost ~]# yum install gcc
Existing lock /var/run/yum.pid: another copy is running. Aborting.
[root@localhost ~]# yum install gcclib*
Existing lock /var/run/yum.pid: another copy is running. Aborting.
[root@localhost ~]# yum install glibc