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Improved RFM script

This commit is contained in:
Michael Grafnetter 2018-12-26 23:46:56 +01:00
parent d6086767e4
commit 8c4bcac808
1 changed files with 15 additions and 14 deletions
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29
Src/DSInternals.PowerShell/ADDBRestoreFromMediaScriptTemplate.ps1
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@ -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()