Neuinstallation schlägt fehl

Hallo, ich habe neben einem Exchange 2016 versucht einen weiteren aufzusetzen und erhalte dabei folgenden Fehler:

Fehler:
Der folgende Fehler wurde generiert, als "$error.Clear();
if ($RoleIsDatacenter -ne $true -and $RoleIsDatacenterDedicated -ne $true)
{
if (Test-ExchangeServersWriteAccess -DomainController $RoleDomainController -ErrorAction SilentlyContinue)
{
$sysMbx = $null;
$name = "SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}";
$dispName = "Microsoft Exchange";
Write-ExchangeSetupLog -Info ("Retrieving mailboxes with Name=$name.");
$mbxs = @(Get-Mailbox -Arbitration -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1 );
if ($mbxs.Length -eq 0)
{
Write-ExchangeSetupLog -Info ("Retrieving mailbox databases on Server=$RoleFqdnOrName.");
$dbs = @(Get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController);
if ($dbs.Length -ne 0)
{
Write-ExchangeSetupLog -Info ("Retrieving users with Name=$name.");
$arbUsers = @(Get-User -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1);
if ($arbUsers.Length -ne 0)
{
Write-ExchangeSetupLog -Info ("Enabling mailbox $name.");
$sysMbx = Enable-Mailbox -Arbitration -Identity $arbUsers[0] -DisplayName $dispName -database $dbs[0].Identity;
}
}
}
else
{
if ($mbxs[0].DisplayName -ne $dispName )
{
Write-ExchangeSetupLog -Info ("Setting DisplayName=$dispName.");
Set-Mailbox -Arbitration -Identity $mbxs[0] -DisplayName $dispName -Force;
}
$sysMbx = $mbxs[0];
}

# Set the Organization Capabilities needed for this mailbox
if ($sysMbx -ne $null)
{
# We need 1 GB for uploading large OAB files to the organization mailbox
Write-ExchangeSetupLog -Info ("Setting mailbox properties.");
set-mailbox -Arbitration -identity $sysMbx -UMGrammar:$true -OABGen:$true -GMGen:$true -ClientExtensions:$true -MailRouting:$true -MessageTracking:$true -PstProvider:$true -MaxSendSize 1GB -Force;

Write-ExchangeSetupLog -Info ("Configuring offline address book(s) for this mailbox");
Get-OfflineAddressBook | where {$_.ExchangeVersion.CompareTo([Microsoft.Exchange.Data.ExchangeObjectVersion]::Exchange2012) -ge 0 -and $_.GeneratingMailbox -eq $null} | Set-OfflineAddressBook -GeneratingMailbox $sysMbx.Identity;
}
else
{
Write-ExchangeSetupLog -Info ("Cannot find arbitration mailbox with name=$name.");
}
}
else
{
Write-ExchangeSetupLog -Info "Skipping creating E15 System Mailbox because of insufficient permission."
}
}
" ausgeführt wurde: "Microsoft.Exchange.Data.DataValidationException: 'Database' ist für 'UserMailbox' verbindlich.".

Fehler:
Der folgende Fehler wurde generiert, als "$error.Clear();
if ($RoleIsDatacenter -ne $true -and $RoleIsDatacenterDedicated -ne $true)
{
if (Test-ExchangeServersWriteAccess -DomainController $RoleDomainController -ErrorAction SilentlyContinue)
{
$sysMbx = $null;
$name = "SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}";
$dispName = "Microsoft Exchange";
Write-ExchangeSetupLog -Info ("Retrieving mailboxes with Name=$name.");
$mbxs = @(Get-Mailbox -Arbitration -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1 );
if ($mbxs.Length -eq 0)
{
Write-ExchangeSetupLog -Info ("Retrieving mailbox databases on Server=$RoleFqdnOrName.");
$dbs = @(Get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController);
if ($dbs.Length -ne 0)
{
Write-ExchangeSetupLog -Info ("Retrieving users with Name=$name.");
$arbUsers = @(Get-User -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1);
if ($arbUsers.Length -ne 0)
{
Write-ExchangeSetupLog -Info ("Enabling mailbox $name.");
$sysMbx = Enable-Mailbox -Arbitration -Identity $arbUsers[0] -DisplayName $dispName -database $dbs[0].Identity;
}
}
}
else
{
if ($mbxs[0].DisplayName -ne $dispName )
{
Write-ExchangeSetupLog -Info ("Setting DisplayName=$dispName.");
Set-Mailbox -Arbitration -Identity $mbxs[0] -DisplayName $dispName -Force;
}
$sysMbx = $mbxs[0];
}

# Set the Organization Capabilities needed for this mailbox
if ($sysMbx -ne $null)
{
# We need 1 GB for uploading large OAB files to the organization mailbox
Write-ExchangeSetupLog -Info ("Setting mailbox properties.");
set-mailbox -Arbitration -identity $sysMbx -UMGrammar:$true -OABGen:$true -GMGen:$true -ClientExtensions:$true -MailRouting:$true -MessageTracking:$true -PstProvider:$true -MaxSendSize 1GB -Force;

Write-ExchangeSetupLog -Info ("Configuring offline address book(s) for this mailbox");
Get-OfflineAddressBook | where {$_.ExchangeVersion.CompareTo([Microsoft.Exchange.Data.ExchangeObjectVersion]::Exchange2012) -ge 0 -and $_.GeneratingMailbox -eq $null} | Set-OfflineAddressBook -GeneratingMailbox $sysMbx.Identity;
}
else
{
Write-ExchangeSetupLog -Info ("Cannot find arbitration mailbox with name=$name.");
}
}
else
{
Write-ExchangeSetupLog -Info "Skipping creating E15 System Mailbox because of insufficient permission."
}
}
" ausgeführt wurde: "Microsoft.Exchange.Data.DataValidationException: 'Database' ist für 'UserMailbox' verbindlich.
bei Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)
bei Microsoft.Exchange.Configuration.Tasks.Task.WriteError(Exception exception, ErrorCategory category, Object target, Boolean reThrow)
bei Microsoft.Exchange.Configuration.Tasks.DataAccessTask`1.Validate(TDataObject dataObject)
bei Microsoft.Exchange.Configuration.Tasks.SetTaskBase`1.InternalValidate()
bei Microsoft.Exchange.Configuration.Tasks.SetRecipientObjectTask`3.InternalValidate()
bei Microsoft.Exchange.Management.Common.SetMailEnabledRecipientObjectTask`3.InternalValidate()
bei Microsoft.Exchange.Management.RecipientTasks.SetUserBase`3.InternalValidate()
bei Microsoft.Exchange.Management.RecipientTasks.SetMailboxBase`3.InternalValidate()
bei Microsoft.Exchange.Management.RecipientTasks.SetMailbox.InternalValidate()
bei Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__91_1()
bei Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)".

Ich blick da irgendwie nicht durch was das Programm da von mir will.

mfg.

Hartmut