
Chapter 6.
71
Migrating from Previous Versions
Red Hat Directory Server 8.1 supports both a migration path and an in-place upgrade, depending on
the version of Directory Server being updated.
For Red Hat Directory Server 8.0 servers, perform an in-place upgrade. This updates all of the
Directory Server packages and then uses the setup script to update the server configuration.
Red Hat Directory Server 7.1 instances can be migrated to Directory Server 8.1. Migration carries
over all data and settings from the older Directory Server to the new Directory Server, including
Administration Server and Console information. This is performed by running a Directory Server-
specific script,
migrate-ds-admin.pl
.
migrate-ds-admin.pl
is flexible enough to allow an
array of migration options, including migrating instances to new platforms and to migrate instances
selectively or to migrate all installed instances simultaneously.
The migration script is silent, meaning that there are no prompts and the user is not required to enter
any information or approve any step in the process. After it run, the Directory Server information
and settings have been moved, intact, from the old Directory Server instance to the new one. For
the simplest migration scenario, the migration script only requires two pieces of information with the
command: the old server root path and the password for the directory administrator.
/usr/sbin/migrate-ds-admin.pl --oldsroot /opt/redhat-ds
General.ConfigDirectoryAdminPwd=password
The different migration scenarios and migration script options are described in this chapter.
6.1. Migration and Upgrade Overview
Moving from an older version of Directory Server to Directory Server 8.1 is a simple process.
In-place upgrades of 8.0 servers means that the packages for the server components are updated. All
of the existing databases, configuration files, and settings remain in-place and unchanged.
Migration for 7.1 servers moves all of the user data and configuration settings, such as replication and
synchronization agreements, from the older instance to the new one.
The general process is as follows:
1. Stop all of the old Directory Server and Administration Server instances.
2. Back up the old Directory Server databases.
3.
For a multi-master replication environment.
Edit the Directory Server Console used by the
migrated server to control directory writes.
4.
For supplier and hub servers in a replicated environment.
Stop directory writes.
5. For Red Hat Enterprise Linux systems, install OpenJDK 1.6.0, which is required by the Directory
Server Console.
6. Install the new Directory Server packages.
7. Run the migration script,
migrate-ds-admin.pl
, for 7.1 systems.