On 04/03/2015 03:46 PM, Brian Topping wrote:
On Apr 3, 2015, at 6:48 AM, Tamas Papp <tom...@martos.bme.hu> wrote:

hi All,

I have CentOS 6.6 server and want to upgrade to 7.1.

What is the upgrade path, can I do it directly or first I need to make it to 
Also is there any known issue I should expect with workarounds?
I just did this yesterday, so here's my experience. If you have a simple single-server 
installation with no custom LDAP DIT modifications, you should find "yum 
upgrade" does the right thing.

If you do have DIT mods, you should ask yourself why they are there and whether 
the data will still be accessible after the ACLs are changed. In my case, I had 
Postfix using a LDAP hash and mail delivery stopped working (although the 
domain data was still there just fine).

Note that the ACLs will propagate from the 4.1 server to your 3.0 if they are 
replicated. To be safe, back up all replicas (snapshot or whatnot) before the 
first upgrade and if you decide to restore any of them, be sure everything is 
shut down and restore all of them to avoid 4.x schema contaminating 3.0 as they 
come up.

Ouch, that must have hurt:)
As far as I recall, we have just very small custom changes.


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