In my lab, I've 2 PC: Pc1: Domain Controller PC2: Exchange PC( point to PC 1) When I install exchange 2 k10 in PC2, I met an error as follow: Summary: 11 item(s). 9 succeeded, 1 failed. Elapsed time: 00:13:39 Preparing Setup Completed Elapsed Time: 00:00:00 Stopping Services Completed Elapsed Time: 00:00:01 Copy Exchange Files Completed Elapsed Time: 00:01:12 Language Files Completed Elapsed Time: 00:02:54 Restoring services Completed Elapsed Time: 00:00:15 Languages Completed Elapsed Time: 00:00:01 Management Tools Completed Elapsed Time: 00:00:11 Hub Transport Role Completed Elapsed Time: 00:03:31 Client Access Role Completed Elapsed Time: 00:02:45 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 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 Elapsed Time: 00:02:45 Finalizing Setup Cancelled Could you help me troulbshoot this issue ? Thanks,

Setup is failing while it's working on the Discovery Search Mailbox. Open Active Directory users and computers and delete the User Object whose display name starts with "DiscoverySearch" and resume the setup and it should be successful. Once setup is complete, run setup.com /p to recreate the Discovery Search. Once created Run the Command below to enable the Discovery Search Mailbox: Get-User Discovery* | Enable-Mailbox "UserLogonName of Discovery Search Mailbox" -Discovery -Database "Your Mailbox Database Name" M.P.K ~ ( Exchange | 2003/2007/2010/E15(2013)) ~~ This Information is provided is "AS IS" and confers NO Rights!!~~ Please remember to click Vote As Helpful" if it really helps and "Mark as Answer if it answers your question, Unmark as Answer if a marked post does not actually answer your question.

Hi,cuocdoi, Did you already run setup.com /prepareschema, setup.com /preparead, and setup.com /pad? Did you at any time delete the original DB which would have been created when this box was first installed and not moved these mailboxes to another DB? Check the following old threads to see if the solutions also work for you http://social.technet.microsoft.com/Forums/en-US/exchangesvrgenerallegacy/thread/61690413-521b-4628-96f9-77b5e421aa47/ http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/10ad4a1e-3108-4016-85cc-8e679e2e8fc9/ Regards, SharonSharon Shen TechNet Community Support ************************************************************************************************************************ Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question.