Installing Exchange 2013 (Something Went Wrong)

I'm not going to go into grand detail today.  Just a few quick notes on installing Exchange 2013 for the first time.  I have 2010 already in my org.

1) You can just install from the latest CU rollup.  I installed directly from 2013 CU9.

2) Install your first server as enterprise admin even if you have previously done the AD prep steps.  The first install of a 2013 server likes to create a user in root domain of your forest.  My Exchange servers live in a child domain and I got access denied when doing some user actions for the SystemMailbox.

3) When you go to access the ECP page you pretty much have to add ?ExchClientVer=15 at the end of the URL to get to see the ECP (https://mail.contoso.com/ecp/?ExchClientVer=15).  If not it just redirects you to a something went wrong page.  This appears to be because of the bug in the installer below.

4) Apparently there is a bug in some of the later CU installation processes.  After finalizing the install of 2013 and setting up the virtual directories I migrated a mailbox.  That mailbox was completely inaccessible. Outlook couldn't open it saying a folder was unavailable and OWA just gave the something went wrong error.  I was not able to even access https://server.contoso.com/autodiscover/autodiscover.xml.  It gave an error about
Parser Error Message: Could not load file or assembly 'Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Line 41:         <add assembly="Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, publicKeyToken=31bf3856ad364e35" />

 The application logs were filled with ASP.NET 4.0.30319.0 Event code: 3008.

From what I found on a couple other blogs is that MS split a file into two and the installer doesn't properly create the second file in all directories as it should in later CU updates.

Copy the sharedwebconfig.config file from:
E:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy
To:
E:\Program Files\Microsoft\Exchange Server\V15\ClientAccess

I'll now post the full error messages for completeness.

From IE:

Server Error in '/Autodiscover' Application.

---

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. 

Parser Error Message: Could not load file or assembly 'Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Source Error: 

Line 39: <!--add assembly="Microsoft.Exchange.Common, Version=8.0.00207.0, Culture=neutral, publicKeyToken=31bf3856ad364e35"/--> Line 40: <!--add assembly="Microsoft.Exchange.Data.Common, Version=8.0.00207.0, Culture=neutral, publicKeyToken=31bf3856ad364e35"/--> Line 41: <add assembly="Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, publicKeyToken=31bf3856ad364e35" /> Line 42: </assemblies> Line 43: </compilation>

Source File: E:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\Autodiscover\web.config    Line: 41 

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.

WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

---

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34248



From Application Event Log:

 Event code: 3008
Event message: A configuration error has occurred.
Event time: 10/7/2015 4:12:01 PM
Event time (UTC): 10/7/2015 10:12:01 PM
Event ID: b89e6ff51088402180f450f7ad847cd1
Event sequence: 1
Event occurrence: 1
Event detail code: 0

Application information:
    Application domain: /LM/W3SVC/2/ROOT/Rpc-7-130887295216281384
    Trust level: Full
    Application Virtual Path: /Rpc
    Application Path: C:\Windows\System32\RpcProxy\
    Machine name: HOSTNAME

Process information:
    Process ID: 10544
    Process name: w3wp.exe
    Account name: NT AUTHORITY\SYSTEM

Exception information:
    Exception type: ConfigurationErrorsException
    Exception message: Could not load file or assembly 'Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. (C:\Windows\System32\RpcProxy\web.config line 37)
   at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective)
   at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal()
   at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig)
   at System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded)
   at System.Web.Compilation.BuildManager.ExecutePreAppStart()
   at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException)

Could not load file or assembly 'Microsoft.Exchange.Security, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.Load(String assemblyString)
   at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective)



Request information:
    Request URL: https://FQDN:444/rpc/rpcproxy.dll?FQDN:6001
    Request path: /rpc/rpcproxy.dll
    User host address: 
    User:
    Is authenticated: False
    Authentication Type:
    Thread account name: NT AUTHORITY\SYSTEM

Thread information:
    Thread ID: 28
    Thread account name: NT AUTHORITY\SYSTEM
    Is impersonating: False
    Stack trace:    at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective)
   at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal()
   at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig)
   at System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded)
   at System.Web.Compilation.BuildManager.ExecutePreAppStart()
   at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException)


Custom event details: