[Samba] Error Upgrading Schema
Matthew Delfino Samba List
mdelfino.list.samba at KNOCKinc.com
Fri Nov 20 02:13:59 UTC 2020
Thank you, Andrew!
This evening I attempted the upgrade. I first carefully commented out each of the attributes from the Schema-Updates.md file. I then saved the file and ran the following command, which gave me the subsequent output:
(as root)
# samba-tool domain schemaupgrade
Temporarily overriding 'dsdb:schema update allowed' setting
Patched Sch49.ldf using /usr/share/samba/setup/adprep/WindowsServerDocs/Sch49.ldf.diff
Exception in patch: b'patching file Sch50.ldf\nHunk #2 succeeded at 207 (offset -37 lines).\nHunk #3 FAILED at 277.\n1 out of 3 hunks FAILED -- saving rejects to file Sch50.ldf.rej\n'
b''
ERROR: Failed to upgrade schema
I had hoped there was a Sch50.ldf.rej in the working directory, or in the same folder wherein Schema-Updates.md makes its home. Unfortunately, there was nothing there. A find for any file by that name revealed nothing as well.
I read this output to tell me that the schema upgrade went through Sch49.ldf.diff without issue, but ran into some kind of problem in Sch50.ldf.diff OR... there appears to be a section in Schema-Updates.md for Sch50.ldf: line 3120 " ### <a name="BKMK_Sch50"></a>Sch50.ldf" and something about the syntax below that line is going bad? Indeed, I do have some attributes in that section commented out:
CN=ms-DS-Primary-Computer,CN=Schema,CN=Configuration,DC=X
CN=ms-DS-Is-Primary-Computer-For,CN=Schema,CN=Configuration,DC=X
CN=ms-DS-Value-Type-Reference,CN=Schema,CN=Configuration,DC=X
CN=ms-DS-Value-Type-Reference-BL,CN=Schema,CN=Configuration,DC=X
(The comment character I am using is a hash tag "#", by the way).
And one of those attributes is described in the Sch50.ldf.diff file as well (CN=ms-DS-Value-Type-Reference-BL,CN=Schema,CN=Configuration,DC=X).
Do you have any ideas as to what I may have done wrong or forgot?
Thank you again for any time you can spare to assist me in upgrading my schema.
Appreciatively,
Matthew
On 2020.11.18, 5:34 PM, "Andrew Bartlett" <abartlet at samba.org> wrote:
On Wed, 2020-11-18 at 23:12 +0000, Matthew Delfino Samba List via samba
wrote:
>
> There is only one thing that concerns me: One of the attributes
> specified in the Samba script has a parameter whose value directly
> contradicts the value specified in my old ldif file:
>
Well done with the analysis!
>
> In Samba script:
>
> dn: CN=ms-DS-Claim-Shares-Possible-Values-
> With,CN=Schema,CN=Configuration,DC=X
>
> isSingleValued: FALSE
>
>
>
> In my ldif file:
>
> dn: cn=ms-DS-Claim-Shares-Possible-Values-
> With,cn=Schema,cn=Configuration,dc=X
>
> isSingleValued: TRUE
>
>
>
> If left unaltered, I wonder if this condition is going to lead to
> mayhem?
>
Not until we implement whatever uses that (probably Windows 2012 R2
Functional level) and only if you want to have more than one of that
thing.
>
> Having said all of that, if I simply comment out all these attributes
> I found, I suspect the schema upgrade may complete. If I'm right and
> the syntax differences noted above are unimportant, and the
> parameters that were missing from my ldif don't matter, I am left
> only with the "isSingleValued" difference in "ms-DS-Claim-Shares-
> Possible-Values-With".
>
>
>
> Do you think this is going to come back to bite me? Is there some
> "legal" way to alter that parameter's value?
>
Yes, just alter it like any other attribute, but with the option set to
allow schema changes (see the schema page).
>
> As usual, I appreciate you and any time you will kindly take to
> consider and answer my question.
You seem to be understanding the issue and solution well.
Andrew Bartlett
--
Andrew Bartlett https://samba.org/~abartlet/
Authentication Developer, Samba Team https://samba.org
Samba Developer, Catalyst IT
https://catalyst.net.nz/services/samba
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