diff --git a/Src/DSInternals.PowerShell/ADDBRestoreFromMediaScriptTemplate.ps1 b/Src/DSInternals.PowerShell/ADDBRestoreFromMediaScriptTemplate.ps1 index 419538a..7b847b9 100644 --- a/Src/DSInternals.PowerShell/ADDBRestoreFromMediaScriptTemplate.ps1 +++ b/Src/DSInternals.PowerShell/ADDBRestoreFromMediaScriptTemplate.ps1 @@ -11,6 +11,11 @@ Michael Grafnetter #> #Requires -Version 3 -Modules DSInternals -RunAsAdministrator +# Perform a VSS backup before doing anything else. +Write-Host 'Creating a snapshot of the system drive to make rollback possible...' +$vssResult = ([wmiclass] 'Win32_ShadowCopy').Create("$env:SystemDrive\", 'ClientAccessible') + +# All the other operations will be executed by a restartable workflow running in SYSTEM context. $initTask = Register-ScheduledJob -Name DSInternals-RFM-Initializer -ScriptBlock { workflow Restore-DomainController { @@ -28,28 +33,24 @@ $initTask = Register-ScheduledJob -Name DSInternals-RFM-Initializer -ScriptBlock { # A DC promotion is required. # Note: In order to mainstain compatibility with Windows Server 2008 R2, the ADDSDeployment module is not used. + # Advice: It is recommenced to change the DSRM password after DC promotion. dcpromo.exe /unattend /ReplicaOrNewDomain:Domain /NewDomain:Forest /NewDomainDNSName:"{DomainName}" /DomainNetBiosName:"{NetBIOSDomainName}" /DomainLevel:{DomainMode} /ForestLevel:{ForestMode} '/SafeModeAdminPassword:"{DSRMPassword}"' /DatabasePath:"{TargetDBDirPath}" /LogPath:"{TargetLogDirPath}" /SysVolPath:"{TargetSysvolPath}" /AllowDomainReinstall:Yes /CreateDNSDelegation:No /DNSOnNetwork:No /InstallDNS:Yes /RebootOnCompletion:No + Set-ItemProperty -Path registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ServerManager\Roles\10 -Name ConfigurationStatus -Value 2 -Force } - # Reboot the computer into Directory Services Restore Mode + # Reboot the computer into the Directory Services Restore Mode. bcdedit.exe /set safeboot dsrepair Restart-Computer -Force -Delay 5 Suspend-Workflow -Label 'Waiting for reboot' - # Create a snapshot of the current state as a precaution. - InlineScript { - # Note: As ntdsutil might not be installed when instantiating the workflow, it needs to be wrapped. - ntdsutil.exe 'activate instance ntds' snapshot create quit quit - } - # Re-encrypt the DB with the new boot key. $currentBootKey = Get-BootKey -Online Set-ADDBBootKey -DBPath '{SourceDBPath}' -LogPath '{SourceLogDirPath}' -OldBootKey {OldBootKey} -NewBootKey $currentBootKey # Clone the DC account password. - $ntdsParams = Get-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\NTDS\Parameters + $ntdsParams = Get-ItemProperty -Path registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters InlineScript { - # Note: SupplementalCredentials do not get serialized properly without using InlineScript. + # Note: SupplementalCredentials do not get serialized properly without using the InlineScript activity. $dcAccount = Get-ADDBAccount -SamAccountName '{DCName}$' -DBPath $using:ntdsParams.'DSA Database file' -LogPath $using:ntdsParams.'Database log files path' -BootKey $using:currentBootKey Set-ADDBAccountPasswordHash -ObjectGuid {DCGuid} -NTHash $dcAccount.NTHash -SupplementalCredentials $dcAccount.SupplementalCredentials -DBPath '{SourceDBPath}' -LogPath '{SourceLogDirPath}' -BootKey $using:currentBootKey } @@ -59,15 +60,15 @@ $initTask = Register-ScheduledJob -Name DSInternals-RFM-Initializer -ScriptBlock robocopy.exe '{SourceLogDirPath}' $ntdsParams.'Database log files path' *.log *.jrs /MIR /NP /NDL /NJS # Replace SYSVOL. - $netlogonParams = Get-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters -Name SysVol - robocopy.exe '{SourceSysvolPath}' (Join-Path -Path $netlogonParams.SysVol -ChildPath 'domain') /COPYALL /SECFIX /TIMFIX /DCOPY:DAT /MIR /NP /NDL + $netlogonParams = Get-ItemProperty -Path registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters -Name SysVol + robocopy.exe '{SourceSysvolPath}' (Join-Path -Path $netlogonParams.SysVol -ChildPath '{DomainName}') /MIR /XD DfsrPrivate /XJ /COPYALL /DCOPY:DAT /SECFIX /TIMFIX /NP /NDL # Reconfigure LSA policies. We would get into a BSOD loop if they do not match the corresponding values in the database. Set-LsaPolicyInformation -DomainName '{NetBIOSDomainName}' -DnsDomainName '{NetBIOSDomainName}' -DnsForestName '{ForestName}' -DomainGuid {DomainGuid} -DomainSid {DomainSid} # Tell the DC that its DB has intentionally been restored. A new InvocationID will be generated as soon as the service starts. - Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\NTDS\Parameters -Name 'Database restored from backup' -Value 1 -Force - Remove-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\NTDS\Parameters -Name 'DSA Database Epoch' -Force + Set-ItemProperty -Path registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters -Name 'Database restored from backup' -Value 1 -Force + Remove-ItemProperty -Path registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters -Name 'DSA Database Epoch' -Force # Disable DSRM and do one last reboot. bcdedit.exe /deletevalue safeboot @@ -98,6 +99,6 @@ schtasks.exe /Change /TN '\Microsoft\Windows\PowerShell\ScheduledJobs\DSInternal schtasks.exe /Change /TN '\Microsoft\Windows\PowerShell\ScheduledJobs\DSInternals-RFM-Resumer' /RU SYSTEM | Out-Null # Start the workflow task and let the magic happen. -Write-Host 'The {DCName} domain controller will now be restored. Several reboots will follow.' +Write-Host 'The {DCName} domain controller will now be restored from media. Up to 3 reboots will follow.' pause $initTask.RunAsTask() \ No newline at end of file