Currently, I have an Exchange 2003 box and am installing a new Exchange 2010 server. When run the setup, this is the error that I am getting; Mailbox Role Failed Error: The following error was generated when "$error.Clear(); if ($RoleIsDatacenter -ne $true) { if (test-ExchangeServersWriteAccess -DomainController $RoleDomainController -ErrorAction SilentlyContinue) { # upgrade the discovery mailboxes to R5 version, this will fix the RecipientDisplayType property of the discovery mailbox which was wrong in R4. get-mailbox -RecipientTypeDetails DiscoveryMailbox -DomainController $RoleDomainController | where {$_.IsValid -eq $false} | set-mailbox -DomainController $RoleDomainController $name = [Microsoft.Exchange.Management.RecipientTasks.EnableMailbox]::DiscoveryMailboxUniqueName; $dispname = [Microsoft.Exchange.Management.RecipientTasks.EnableMailbox]::DiscoveryMailboxDisplayName; $mbxs = @( get-mailbox -Filter {name -eq $name} -IgnoreDefaultScope -resultSize 1 ); if ( $mbxs.length -eq 0) { $dbs = @(get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController); if($dbs.Length -ne 0) { $mbxUser = @(get-user -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1); if ($mbxUser.Length -ne 0) { enable-mailbox -Discovery -identity $mbxUser[0] -DisplayName $dispname -database $dbs[0].Identity; } } } } else { write-exchangesetuplog -info "Skipping creating Discovery Search Mailbox because of insufficient permission." } } " was run: "Database is mandatory on UserMailbox. Property Name: Database". Database is mandatory on UserMailbox. Property Name: Database Click here for help... http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.1.218.11&e=ms.exch.err.Ex88D115&l=0&cl=cp Error: The following error was generated when "$error.Clear(); if ($RoleIsDatacenter -ne $true) { if (test-ExchangeServersWriteAccess -DomainController $RoleDomainController -ErrorAction SilentlyContinue) { # upgrade the discovery mailboxes to R5 version, this will fix the RecipientDisplayType property of the discovery mailbox which was wrong in R4. get-mailbox -RecipientTypeDetails DiscoveryMailbox -DomainController $RoleDomainController | where {$_.IsValid -eq $false} | set-mailbox -DomainController $RoleDomainController $name = [Microsoft.Exchange.Management.RecipientTasks.EnableMailbox]::DiscoveryMailboxUniqueName; $dispname = [Microsoft.Exchange.Management.RecipientTasks.EnableMailbox]::DiscoveryMailboxDisplayName; $mbxs = @( get-mailbox -Filter {name -eq $name} -IgnoreDefaultScope -resultSize 1 ); if ( $mbxs.length -eq 0) { $dbs = @(get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController); if($dbs.Length -ne 0) { $mbxUser = @(get-user -Filter {name -eq $name} -IgnoreDefaultScope -ResultSize 1); if ($mbxUser.Length -ne 0) { enable-mailbox -Discovery -identity $mbxUser[0] -DisplayName $dispname -database $dbs[0].Identity; } } } } else { write-exchangesetuplog -info "Skipping creating Discovery Search Mailbox because of insufficient permission." } } " was run: "Database is mandatory on UserMailbox. Property Name: Database". Database is mandatory on UserMailbox. Property Name: Database

Hi, Delete the account DiscoverySearchMailbox* in ADUC. You will find it in the Users Container. Then run Setup.com /prepareAD before you start the installation of Exchange. Aslo make sure you use the latest binaries and that would be SP2 and nothing else. Martina Miskovic