Downgrade centos 6.5 to 6.4?

Can you downgrade centos 6.5 to 6.4 if you install the OS originally using centos 6.5 iso?

[root@server ~]# yum list kernel-2.6.32*
Loaded plugins: fastestmirror, refresh-packagekit, security
Determining fastest mirrors
 * base: mirror.solarvps.com
 * extras: ftpmirror.your.org
 * updates: centos-mirror.jchost.net
base                                                     | 3.7 kB     00:00
base/primary_db                                          | 4.6 MB     00:00
extras                                                   | 3.4 kB     00:00
extras/primary_db                                        |  30 kB     00:00
updates                                                  | 3.4 kB     00:00
updates/primary_db                                       | 2.7 MB     00:02
Installed Packages
kernel.x86_64    2.6.32-431.el6         @anaconda-CentOS-201311272149.x86_64/6.5
Available Packages
kernel.x86_64    2.6.32-504.12.2.el6    updates
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SuperRootAsked:
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MazdajaiCommented:
No, it is not possible. You can only downgrade the kernel and the release when you perform an upgrade.

Is there a specific reason you want to downgrade to 6.4?
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gheistCommented:
Download 6.4 ISO and reinstall???
You cannot downgrade YUM and RPM databases. Undastood?
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SuperRootAuthor Commented:
I do need to downgrade all libx* stuff for the application I'm working on. Problem is when I do downgrade of all libx, it's saying  "only update is available blah blah blah" is there other ways to fix it?
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SuperRootAuthor Commented:
This is the link I'm working on http://www.ca.com/us/support/ca-support-online/product-content/knowledgebase-articles/tec1388328.aspx of course the only option yum is giving me is update not downgrade
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MazdajaiCommented:
The easiest way is to download the earlier version of RHEL6, test if it works with crystal reports.

If so, then upgrade everything except for the the libx11 libraries with "yum versionlock <package-name>" to lock a package at specific version.
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SuperRootAuthor Commented:
Thank you or your help!

I manage to downgrade the kernel and other stuff. I went to /etc/yum.repos.d/CentOS-Vault.repo. Added Centos 6.5 foo below but notice I only enable the base part. I added the rest just in case I need them in the future. I will disable Centos-6.5 base on the repo once the SAP engineer says that all package I need works.

[C6.5-base]
name=CentOS-6.5 - Base
baseurl=http://vault.centos.org/6.5/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=1

[C6.5-updates]
name=CentOS-6.5 - Updates
baseurl=http://vault.centos.org/6.5/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=0

[C6.5-extras]
name=CentOS-6.5 - Extras
baseurl=http://vault.centos.org/6.5/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=0

[C6.5-contrib]
name=CentOS-6.5 - Contrib
baseurl=http://vault.centos.org/6.5/contrib/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=0

[C6.5-centosplus]
name=CentOS-6.5 - CentOSPlus
baseurl=http://vault.centos.org/6.5/centosplus/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=0
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gheistCommented:
Crystal reports requires RHEL5 or RHEL6 which means that there is no sane reason to run on outdated system.
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