Error when try to install exchange Server 2013 in windows server 2008 R2 Sp1

Question

Hi
I'm getting these errors while trying to install Microsoft Exchange Server 2013 on my Windows Server 2008 R2 SP1 the user i'm using is the Administrator and it is already a member of "Enterprise
Admins" and "Schema Admins"
in my organization there is 6 Exchange server 2013 in 3 site windows server 2012 in this case
I have to install exchange 2013 in windows Server 2008 r2 sp1
the functional level  2008 R2 I getting these errors please help.
Errors:
This computer doesn't belong to a valid Active Directory site. Check the site and subnet definitions.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.InvalidADSite.aspx
Error:
A reboot from a previous installation is pending. Please restart the system and then rerun Setup.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.RebootPending.aspx
Error:
There is a pending reboot from a previous installation of a Windows Server role or feature. Please restart the computer and then run Setup again.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.PendingRebootWindowsComponents.aspx
Error:
You must be a member of the 'Organization Management' role group or a member of the 'Enterprise Admins' group to continue.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.GlobalServerInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install or upgrade the first Mailbox server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedBridgeheadFirstInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install the first Client Access server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedCafeFirstInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install the first Client Access server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedFrontendTransportFirstInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install or upgrade the first Mailbox server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedMailboxFirstInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install or upgrade the first Client Access server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedClientAccessFirstInstall.aspx
Error:
You must use an account that's a member of the Organization Management role group to install the first Mailbox server role in the topology.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DelegatedUnifiedMessagingFirstInstall.aspx
Error:
Setup encountered a problem while validating the state of Active Directory: Could not find information about the local site. This can be caused by incorrect configuration of subnets or sites or by replication latency.  See the Exchange setup log for more
information on this error.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx
Error:
Either Active Directory doesn't exist, or it can't be contacted.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.CannotAccessAD.aspx

Answer 1

I think it's from subnet in site and services
have 3 site A,B,C and new site is  "D"I have problem in "D" site
A subnet is 10.33.50.0/24  AD 2012 ,exchange 2013
B subnet is 10.35.50.0/24 AD 2012 ,exchange 2013
C subnet is 10.36.50.0/24 AD 2012 ,exchange 2013
D subnet is 10.100.100.0/25 AD 2008 ,exchange 2013 error when install it
find event error
The description for Event ID 6 from source MSExchange CmdletLogs cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair
the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
test-SetupPrerequisites
{Roles={LanguagePacks, Bridgehead, ClientAccess, UnifiedMessaging, Mailbox, FrontendTransport, Cafe}, LanguagesAvailableToInstall=True, DomainController=, CustomerFeedbackEnabled=True, ExchangeVersion=15.0.847.32, LanguagePackDir=D:\Exchange
Server Software, SufficientLanguagePackDiskSpace=True, ADInitError=Setup encountered a problem while validating the state of Active Directory: Could not find information about the local site. This can be caused by incorrect configuration of subnets or sites
or by rep, ScanType=PrecheckInstall, LanguagePackVersioning=True, HostingDeploymentEnabled=False, TargetDir=C:\Program Files\Microsoft\Exchange Server\V15, SetupRoles={LanguagePacks, AdminTools, Bridgehead, ClientAccess, UnifiedMessaging, Mailbox, FrontendTransport,
Cafe}}