I’m not expert but I think ipa-replica-prepare is depcrecated in 4.4 as the 
procedure become more simple.

I think setting up a new cluster of CentOS 7.3 machines and setting up replicas 
against the old cluster is sufficient.

What do the experts say?
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Dr Christophe Trefois, Dipl.-Ing.  
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> On 24 Mar 2017, at 00:54, Zak Peirce <zak.pei...@zoom.us> wrote:
> 
> I am looking to take this same journey.  I found this guide, it seems like
> it covers all the bases
> 
> https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/h
> tml/Linux_Domain_Identity_Authentication_and_Policy_Guide/upgrade-6-to-7.h
> tml
> 
> 
> -Zak
> 
> -----Original Message-----
> From: freeipa-users-boun...@redhat.com
> [mailto:freeipa-users-boun...@redhat.com] On Behalf Of Dagan
> Sent: Thursday, March 23, 2017 3:52 PM
> To: freeipa-users@redhat.com
> Subject: [Freeipa-users] Migration from FreeIPA 3.0 to 4.x
> 
> Hi,
> 
> I am hoping someone will be able to help answer some questions about
> migrations.
> 
> I have been asked to look at upgrading an existing FreeIPA installation on
> CentOS 6 (3.0.0) to a new installation on CentOS 7 with a recent stable
> release (4.4.0).
> 
> The existing CentOS 6 installation does not manage DNS or have a CA that
> is being used (though the may be installed. It's primarily for user
> authentication and user group management.
> 
> There are only a small number of users, groups, and hosts to migrate -
> less than 100 of each.
> But the data is used for LDAP integration in various applications so it
> needs to be consistent.
> 
> Would it be recommended to do a straight LDIF type export and import of
> the data, and configure the new FreeIPA installation for the new
> access/sudo rules?
> 
> Would that risk leaving behind any data I would need to know about?
> 
> We are planning to review the sudo rules, host access lists etc as part of
> the migration work. So leaving behind some data may not be a blocker to
> upgrade.
> 
> Any suggestions or links welcome.
> 
> Cheers,
> Dagan McGregor
> 
> 
> 
> 
> -- 
> Manage your subscription for the Freeipa-users mailing list:
> https://www.redhat.com/mailman/listinfo/freeipa-users
> Go to http://freeipa.org for more info on the project
> 
> -- 
> Manage your subscription for the Freeipa-users mailing list:
> https://www.redhat.com/mailman/listinfo/freeipa-users
> Go to http://freeipa.org for more info on the project

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