Login your domain to another domain of sharepoint site

one of my friend  asked me one question that was it possible to access the External domain sharepoint site using his domain credentials?

Resolution:
                    I have said that it was possible to access another domain sharepoint site from one domain credentials using the below steps

1. create the Forest Trust between both domain in the AD server.
2. once you succeeded the domain trust, go to the sharepoint site and add the External domain users account in the site.
3. Once you added the External domain user account, now it should be access the sharepoint site.

Not able to create document library for upgraded SP site

Not able to creating the document library in migrated sharepoint foundation 2010 site and we got the below error message in the Log file

“Cannot complete this action.  Please try again.    at Microsoft.SharePoint.Library.SPRequestInternalClass.GetSchemaXML(String bstrUrl, String bstrListName, UInt32 sch, Boolean bOnlyViewAttributes, Boolean bExtendedFieldsProperties, Boolean bNeedInitAll, ISPDataCallback pXMLCallback)     at Microsoft.SharePoint.Library.SPRequest.GetSchemaXML(String bstrUrl, String bstrListName, UInt32 sch, Boolean bOnlyViewAttributes, Boolean bExtendedFieldsProperties, Boolean bNeedInitAll, ISPDataCallback pXMLCallback)                53b2842c-67d3-4b87-a095-58d366880335”

Resolution:

                      The above Error message because of some customization site definition is not installed in the sharepoint foundation 2010 Machine. So we have to find out the which site definition file is missing and move that site template file and XML file to sharepoint foundation machine from WSS.

Failed determine the setup path of the list schema for feature

I have upgraded one of my  Moss site to sharepoint 2010 using Detach and Attach Method. when opening the document library in one of the subsite, i got the below Error message in the Sharepoint Log file.
"Failed to determine the setup path of the list schema for feature {525DC00C-0745-47C0-8073-221C2EC22F0F}, list template 101.

System.ArgumentException: Feature '525dc00c-0745-47c0-8073-221c2ec22f0f' for list template '101' is not installed in this farm. 

The operation could not be completed.   "

Resolutions:

1.       The cause above Error is some features are missing. So we have to find out the which feature is missing and copy that missing feature from WSS and move that feature files to SharePoint foundation 2010.

For finding the feature please use the below link which is very useful.

http://sharepoint-geek.com/2010/10/08/sharepoint-2007-moss-features/

2.       Then we have to activate that feature in the sharepoint server 2010 using below Stsadm command.

STSADM.EXE  -O INSTALLFEATURE  -NAME <GIVE THE NAME OF THE FEATURE)

In mycase 4 feature are missing and I have moved those features and I run the stsadm commands.

Stsadm.exe  -o installfeature  -name pwdoclibs

3.       Finally Reset the IIS.