View source for Upgrading Zimbra from RHEL4 to RHEL5

{{Archive}}{{Article Infobox|{{admin}}|||{{ZCS 4.5}}}}== Introduction ==
Zimbra Collaboration Suite 4.5.6 is the first version of ZCS that provides support on the Red Hat Enterprise Linux 5 (RHEL5) platform.  This article describes the high level procedures in upgrading an existing ZCS installation from RHEL4 to RHEL5.<br>
''Note: We currently don't support RedHat Cluster (RHCS) on RHEL5.  There is currently no date to support it.''

== Procedures ==
1. Upgrade to ZCS 4.5.6 (build 1044) RHEL4/RHEL4_64.<br>
2. Run the following command as root,
 chkconfig zimbra off
3. Make sure that the Security Enhanced Linux (SELinux) is disabled by setting the following in ''/etc/selinux/config'':<br>
 SELINUX=disabled
4. Upgrade the Operating System to RHEL5/RHEL5_64 by selecting the '''"Upgrade an existing installation"''' option.<br>
5. Upgrade ZCS to 4.5.6 (build 1044) RHEL5/RHEL5_64. 

Ignore the following error:

 <tt>Backing up ldap
 /opt/zimbra/openldap/sbin/slapcat: error while loading shared libraries: libssl.so.4: cannot open shared object file: No such file or
 directory</tt>

{{Article Footer|Zimbra Collaboration Suite 4.5.6|7/28/2007}}

[[Category: Installation]]
[[Category: ZCS 4.5]]