Upgrading from a really old Samba 4?

[Amitay Isaacs]

On Tue, Apr 3, 2012 at 12:50 AM, Michael Wood <esiotrot at gmail.com> wrote:
> On 29 March 2012 17:26, Michael Wood <esiotrot at gmail.com> wrote:
>> Hi
>>
>> Summary:
>>
>> I'm running a really old version of Samba 4 (77b9b97) with the DNS
>> records in a normal bind9 zone file.  No need for dyndns, since I
>> don't have machines joining/leaving the domain.
>>
>> There seems to be a memory leak in that version.  Otherwise it works very well.
>>
>> Questions:
>>
>> If I were to upgrade from such an old version, is it necessary to run
>> upgradeprovision?  (I know that running upgradeprovision is not
>> recommended right now, in which case would I need to wait until
>> upgradeprovision is fixed?)
>>
>> If I do need to run upgradeprovision, what order do I run it in wrt.
>> dbcheck and/or the DNS upgrade script?
>
> And additional question related to the above:
>
> What is actually wrong with upgradeprovision?  Is it just related to DNS?
>
> I'd appreciate it if someone could enlighten me wrt. the above :)  Matthieu?
>
> Thanks.

upgradeprovision script provided a way to upgrade AD database that was
provisioned using older samba4 alpha releases. This is due to the
changes in the provision schema. (Matthieu can highlight which version
included the schema changes, so if you are using older version, you
will have to use upgradeprovision.)

You can run dbcheck before and after. It does not change the database
unless explicitly asked to do so. If there are problems in AD, dbcheck
tool would identify them.

samba_upgradedns is provided as a tool to migrate from using BIND9
flat files to AD based DNS (either using DLZ module or internal dns
server).

So, assuming you have provisioned this AD database long before (and
requires schema fixes):

1. Run upgradeprovision to fix schema
2. Check that the upgraded schema is correct and no missing
attributes/links etc. using samba-tool dbcheck
3. If you want to use AD based DNS and step 1 has not added DNS
partitions, then you would use samba_upgradedns to fix the provision
for DNS.

Hope that helps.

Amitay.