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Warning when backing up GPO's

Posted on 2011-09-19
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Last Modified: 2012-06-22
I tried following the process described in this article: http://blogs.technet.com/b/sbs/archive/2009/04/16/how-to-backup-restore-and-re-link-group-policies-in-sbs-2008.aspx

When I followed these steps I had over 50 paragraphs of output similar to this:

GPO: Update Services Client Computers Policy...Succeeded, but note the following issues:

[Warning] The security principal [S-1-5-21-4187703203-3677896876-4144508086-2116] referenced in extension [Core Extension] cannot be resolved, but the task will continue. In the future, you can use a migration table to map or remove this security principal.
Details: No mapping between account names and security IDs was done.
 
What does this really mean and what concerns do I have with so many warnings?
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Question by:LostInWindows
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Expert Comment

by:JAN PAKULA
ID: 36559758
that means that you have in group policy referarls to sid numbers (users ids) which are no logen in active directory - they were deleted- to back up without errors go to given group plicy and remove unresorvable sid numbers.

JAN MA CCNA
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Expert Comment

by:ComputerBeast
ID: 36559764
Hi,

Refer this article:

http://support.microsoft.com/kb/890737

Thank you
Anil
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by:LostInWindows
ID: 36560223
The support article doesn't appear to cover SBS 2008
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by:Ackles
ID: 36567911
Try logging on as Enterprise Admin & see if you get the errors?
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by:LostInWindows
ID: 36567984
Ho w do I remove unresolvable SID's? I don't see where exactly I would do this.
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Ackles earned 1000 total points
ID: 36568062
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by:Ackles
ID: 36568102
Please go throught the below, you have to read the full discussion, the main points are:
1) Get the latest version
2) Run as Administrator

http://forums.techarena.in/active-directory/1196724.htm

A
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Assisted Solution

by:JAN PAKULA
JAN PAKULA earned 1000 total points
ID: 36572063
if you check your log file ( created whilest backing up Gps) you will see unresovable sid numbers and Gps in which are they used.
before you edit given policy (before backing up) you can have a look on settings tab and click show all - this should give you exact place in GP where bad sid is used- then just edit Gp remove wrong sids( you will know which ones from log file) and try backing up again

JAN MA CCNA
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Author Closing Comment

by:LostInWindows
ID: 36592374
Thanks, that was it. I had to cleanup old SID's
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