update problems

[Margaret Doll]

Yum and the RedHat systems page disagree on the upgrades needed for  
three of our systems.  Also what is the best way to clear multiple  
installations of the same package on a system.

I have eight RedHat systems.   At least four use "yum update" to  
update software.

On the four systems using "yum update", I have completed all the  
updates available using this command.
However the RedHat web page that shows systems that need updates,    
three of the systems still need an update of


	 glibc-2.5-34.el5_3.1 	 glibc-2.5-34 Bug Fix Advisory RHBA-2009:1202-1

	glibc-common-2.5-34.el5_3.1 	glibc-common-2.5-34 Bug Fix Advisory  
RHBA-2009:1202-1
	glibc-devel-2.5-34.el5_3.1 	glibc-devel-2.5-34 Bug Fix Advisory  
RHBA-2009:1202-1

	glibc-headers-2.5-34.el5_3.1 	glibc-headers-2.5-34 Bug Fix Advisory  
RHBA-2009:1202-1
	nscd-2.5-34.el5_3.1 	nscd-2.5-34  Bug Fix Advisory RHBA-2009:1202-1

If I run  "yum install glibc-2.5-34.el5_3.1",  I get
Setting up Install Process
Parsing package install arguments
No package glibc-2.5-34.el5_3.1 available.

Running "yum update glibc"
Loaded plugins: rhnplugin, security
Skipping security plugin, no data
Setting up Update Process
No Packages marked for Update


The systems are running 2.6.18-128.1.14.el5,
						2.6.18-128.1.1.el5xen
						2.6.18-128.1.6.el5xen


All three systems show glibc-2.5-34 and glibc-devel-2.5-34 installed  
twice.

rpm -aq | grep glibc
glibc-2.5-34
glibc-devel-2.5-34
compat-glibc-2.3.4-2.26
glibc-devel-2.5-34
compat-glibc-headers-2.3.4-2.26
glibc-common-2.5-34
glibc-headers-2.5-34
compat-glibc-2.3.4-2.26
glibc-2.5-34