On SL6.1 I am trying to yum update glibc and it's failing I think with a conflict of sources, but I'm not too sure. I don't really know how to parse the yum error, but here it is:
# yum update glibc
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package glibc.x86_64 0:2.12-1.80.el6_3.3 will be updated
---> Package glibc.x86_64 0:2.12-1.80.el6_3.5 will be an update
--> Processing Dependency: glibc-common = 2.12-1.80.el6_3.5 for package: glibc-2.12-1.80.el6_3.5.x86_64
--> Running transaction check
---> Package glibc-common.x86_64 0:2.12-1.80.el6_3.3 will be updated
--> Processing Dependency: glibc-common = 2.12-1.80.el6_3.3 for package: glibc-2.12-1.80.el6_3.3.i686
---> Package glibc-common.x86_64 0:2.12-1.80.el6_3.5 will be an update
--> Finished Dependency Resolution
Error: Package: glibc-2.12-1.80.el6_3.3.i686 (@sl-security)
Requires: glibc-common = 2.12-1.80.el6_3.3
Removing: glibc-common-2.12-1.80.el6_3.3.x86_64 (@sl-security)
glibc-common = 2.12-1.80.el6_3.3
Updated By: glibc-common-2.12-1.80.el6_3.5.x86_64 (sl-security)
glibc-common = 2.12-1.80.el6_3.5
Available: glibc-common-2.12-1.25.el6.x86_64 (sl)
glibc-common = 2.12-1.25.el6
Available: glibc-common-2.12-1.47.el6.x86_64 (sl-security)
glibc-common = 2.12-1.47.el6
Available: glibc-common-2.12-1.47.el6_2.5.x86_64 (sl-security)
glibc-common = 2.12-1.47.el6_2.5
Available: glibc-common-2.12-1.47.el6_2.9.x86_64 (sl-security)
glibc-common = 2.12-1.47.el6_2.9
Any help given is greatly appreciated. The sl and sl-security repositories are not those provided by scientificlinux.org, rather a static mirror with only the relevant packages provided by a research partner.