Hallow Everyone,
I am new in the world of Linux and I am trying to learn. I was updating mY Powedge 1900 dell server and I am getting the following error:

Testing package set / solving RPM inter-dependencies...
warning: package glibc = 2.3.4-2.43 was already added, replacing with glibc <= 2.3.4-2.43
There was a package dependency problem. The message was:

Unresolvable chain of dependencies:
glibc-2.3.4-2.43 requires glibc-common = 2.3.4-2.43
glibc-common-2.8.90-13 requires glibc = 2.8.90-13
glibc-devel-2.8.90-13 requires glibc = 2.8.90-13
glibc-headers-2.8.90-13 requires glibc = 2.8.90-13


The following packages were added to your selection to satisfy dependencies:
Package Required by
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PLEASE HELP ME RESOLVE THIS PROBLEM.
THANKS
WEKESA