SharePoint Configuration wizard error after an Cummulative Update (CU) or service pack (SP) install: Solution Dismount database then run wizard then remount DB

When you have large content databases on your web application, the Configuration Wizard can error out or just never seem to finish.




If that is the case, you can un-mount the content databases then run the wizard, then re-mount the databases with the script that is produced by the script below.  don't forget to replace the <<DatabaseServer>>   with your database server name.  ex.  mySQLServer.mydomain.com
and


















Add-PSSnapin Microsoft.SharePoint.Powershell


$data = Get-SPContentDatabase


foreach($d in $data)
{
    write-host 'Dismount-SPContentDatabase -Identity' $d.Id ' -WarningAction SilentlyContinue'
}

foreach($d in $data)
{
    write-host 'Mount-SPContentDatabase -Name '$d.Name '-WebApplication '$d.WebApplication.Url' -DatabaseServer <<DatabaseServer>> -WarningAction SilentlyContinue'
}