I am trying to install gcc for an Oracle requirement and the yum install is failing with following:

[root@odccdds01 ~]# /usr/bin/yum install gcc
Loaded plugins: rhnplugin, security
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package gcc.i386 0:4.1.2-42.el5 set to be updated
--> Processing Dependency: libgomp = 4.1.2-42.el5 for package: gcc
--> Processing Dependency: cpp = 4.1.2-42.el5 for package: gcc
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc
--> Running transaction check
---> Package glibc-devel.i386 0:2.5-24.el5_2.2 set to be updated
--> Processing Dependency: glibc-headers = 2.5-24.el5_2.2 for package: glibc-devel
--> Processing Dependency: glibc = 2.5-24.el5_2.2 for package: glibc-devel
--> Processing Dependency: glibc-headers for package: glibc-devel
---> Package gcc.i386 0:4.1.2-42.el5 set to be updated
--> Processing Dependency: libgomp = 4.1.2-42.el5 for package: gcc
--> Processing Dependency: cpp = 4.1.2-42.el5 for package: gcc
--> Running transaction check
---> Package glibc.i386 0:2.5-24.el5_2.2 set to be updated
--> Processing Dependency: glibc-common = 2.5-24.el5_2.2 for package: glibc
---> Package glibc-headers.i386 0:2.5-24.el5_2.2 set to be updated
--> Processing Dependency: kernel-headers >= 2.2.1 for package: glibc-headers
--> Processing Dependency: kernel-headers for package: glibc-headers
---> Package gcc.i386 0:4.1.2-42.el5 set to be updated
--> Processing Dependency: libgomp = 4.1.2-42.el5 for package: gcc
--> Processing Dependency: cpp = 4.1.2-42.el5 for package: gcc
--> Running transaction check
---> Package glibc.i386 0:2.5-24.el5_2.2 set to be updated
--> Processing Dependency: glibc-common = 2.5-24.el5_2.2 for package: glibc
---> Package kernel-headers.i386 0:2.6.18-92.1.22.el5 set to be updated
---> Package gcc.i386 0:4.1.2-42.el5 set to be updated
--> Processing Dependency: libgomp = 4.1.2-42.el5 for package: gcc
--> Processing Dependency: cpp = 4.1.2-42.el5 for package: gcc
--> Finished Dependency Resolution
glibc-2.5-24.el5_2.2.i386 from rhel-i386-server-5 has depsolving problems
--> Missing Dependency: glibc-common = 2.5-24.el5_2.2 is needed by package glibc-2.5-24.el5_2.2.i386 (rhel-i386-server-5)
gcc-4.1.2-42.el5.i386 from rhel-i386-server-5 has depsolving problems
--> Missing Dependency: libgomp = 4.1.2-42.el5 is needed by package gcc-4.1.2-42.el5.i386 (rhel-i386-server-5)
gcc-4.1.2-42.el5.i386 from rhel-i386-server-5 has depsolving problems
--> Missing Dependency: cpp = 4.1.2-42.el5 is needed by package gcc-4.1.2-42.el5.i386 (rhel-i386-server-5)
Error: Missing Dependency: glibc-common = 2.5-24.el5_2.2 is needed by package glibc-2.5-24.el5_2.2.i386 (rhel-i386-server-5)
Error: Missing Dependency: cpp = 4.1.2-42.el5 is needed by package gcc-4.1.2-42.el5.i386 (rhel-i386-server-5)
Error: Missing Dependency: libgomp = 4.1.2-42.el5 is needed by package gcc-4.1.2-42.el5.i386 (rhel-i386-server-5)
[root@odccdds01 ~]#

If I try to install what dependencies it says it's missing, it tells me they are already installed....

Not sure where to go from here to get gcc installed, any assistance would be appreciated....

you can prove the existance of an installed RPM by issuing:
rpm -qa | grep <RPM_Name>

Otherwise, you can try and force the issue with the yum option '--nodeps' if you're sure the rpms are installed.

Make sure that you have the correct versions of glibc-common, libgomp and cpp are installed. Run 'which' or 'locate' to find out where these are installed.
You might have to check how those missing-and-existing packages are installed. If they have been installed manually (no yum and rpm involved), then the RPM database has no notion about these and issues an missing-error message for otherwise installed packages. I have seen similar issues on RHEL with MySQL, where a manual base installation and an RPM-based development package installation didn't fit together.

Debian

Thanks for the replies, will check the suggestions out....

This server is a new install, and everything currently on there was from the installation process....

If it is CentOS 5.x, things should just work.

If Redhat EL 5.x, isn't there some account,
you have to activate at Redhat ? ?

....

Thanks for every ones assistance, was able to trace back all the dependencies, removed them, and let yum do it's thing of installing all the prereqs it needed....