install Exchange Server 2013 CU11 :error

I was trying to install Exchange Server 2013 CU11 on my lab exchange server. I encountered two errors.

1.  A Restart from a Previous Installing is pending
Resolution:
To remove an orphaned UpdateExeVolatile registry key value

  1. Open a registry editor, such as Regedit.exe or Regedt32.exe.
  2. Navigate to HKLMSOFTWAREMicrosoftUpdates
  3. In the right navigation pane, double-click the UpdateExeVolatile key.
  4. Configure the key with a value of 0
  5. Close Registry Editor.
https://technet.microsoft.com/en-us/library/cc164360(v=exchg.80).aspx
2. Organization Preparation FAILED
Error: 8224
Error:  The following error was generated when “$error.Clear();   install-ExchangeSchema -LdapFileName ($roleInstallPath + “SetupData”+$RoleSchemaPrefix + “schema0.ldf”)
” was run: “There was an error while running ‘ldifde.exe’ to import the schema file ‘C:WindowsTempExchangeSetupSetupDataPostWindows2003_schema0.ldf’. The error code is: 8224. More details can be found in the error file: ‘C:Usersadministrator.{your-domain}AppDataLocalTemp2ldif.err'”.
There was an error while running ‘ldifde.exe’ to import the schema file ‘C:WindowsTempExchangeSetupSetupDataPostWindows2003_schema0.ldf’. The error code is: 8224. More details can be found in the error file: ‘C:Usersadministrator.{your-domain}AppDataLocalTemp2ldif.err’


Solutionhttps://social.technet.microsoft.com/Forums/exchange/en-US/d8713608-1a4d-4d08-b66c-9a38c6bf4625/error-code-8224-ldifde-exchange-2013-installation-failure

Fore Replicate between DCs

https://technet.microsoft.com/en-us/library/cc816926(v=ws.10).aspx

To force replication over a connection

  1. Open Active Directory Sites and Services: On the Start menu, point to Administrative Tools, and then click Active Directory Sites and Services.
  2. In the console tree, expand Sites, and then expand the site to which you want to force replication from the updated server.
  3. Expand the Servers container to display the list of servers that are currently configured for that site.
  4. Expand the server objects and click their NTDS Settings objects to display their connection objects in the details pane. Find a server that has a connection object from the server on which you made the updates.
  5. Click NTDS Settings below the server object. In the details pane, right-click the connection object whose From Server is the domain controller that has the updates that you want to replicate, and then click Replicate Now.
  6. When the Replicate Now message box appears, review the information, and then click OK.