[Freeipa-users] CentOS 6 -> 7 migration

[Petr Vobornik]

On 02/26/2017 04:58 PM, Rob Verduijn wrote:
> Sounds feasable, however I'm not sure which solution entails the most work.

+1

Just in case, I'll mention migration documentation: 
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Linux_Domain_Identity_Authentication_and_Policy_Guide/upgrading.html#migrating-ipa-proc 


There are some manual steps regarding CA which should not be skipped.

>
> In step 3 you loose all the extra functionalities( cups/squid/ntp ) as well,
> while these stay preserved by a p2v including a nice backup.
> You do need a backup of all the functions before proceeding with step3.
>
> Rob Verduijn
>
> 2017-02-26 14:40 GMT+01:00 Ian Pilcher <arequipeno at gmail.com
> <mailto:arequipeno at gmail.com>>:
>
>     On 02/26/2017 05:08 AM, Rob Verduijn wrote:
>
>         You should consider setting up a temporary vm to migrate from.
>         On one of your client systems, I assume you got at least 1 ipa client
>
>         Try looking at http://libguestfs.org/virt-p2v.1.html
>         <http://libguestfs.org/virt-p2v.1.html> to migrate your
>         current system to a vm  (side effect : instant full backup)
>
>         When you got the vm up and running you can reinstall your main system
>         with the new os and ipa.
>         Then replicate the old ipa to the new one.
>
>
>     Hmm.  The system that runs IPA is the "network server" in my home
>     network.  It runs various services -- DNS, NTP, CUPS, squid, etc. -- as
>     well as routing between various VLANs.  So simply P2V'ing it would be
>     a major project in its own right.
>
>     What about this, though ...
>
>     1.  Set up a new CentOS 7 VM running IPA
>
>     2.  Replicate the IPA data from the old CentOS 6 system to the VM.
>
>     3.  Install CentOS 7 on the original system
>
>     4.  Replicate the IPA data back from the VM
>
>     Will this work?
>
>     --
>     ========================================================================
>     Ian Pilcher arequipeno at gmail.com <mailto:arequipeno at gmail.com>
>     -------- "I grew up before Mark Zuckerberg invented friendship" --------
>     ========================================================================
>
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>
>
>
>


-- 
Petr Vobornik

Associate Manager, Engineering, Identity Management
Red Hat, Inc.