Server 2008 r2 wont boot

Our Dell Server wont boot to the O/S (server 2008 r2).  It get to the Server splash screen , but will just reboot again from there, seem to be in an endless look.  I did boot the to Server installation disk and run the repair, but it didn't fix anything and if i don't boot to the disc it goes back to the reboot loop.  Back in server 2003 there was a reapir install that you were able to run that would repair the installation and leave all the installs/config/setting in tact.  Does server 2008 r2 have this or is there something else here i can try??
Michael McGuireSystems AdministratorAsked:
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

Did you tried to boot into safe mode or DSRM(if it's a DC)?

Try this method to repair the boot files and see if it works?

https://www.dell.com/support/article/us/en/19/sln167714/windows-server--how-to-repair-the-boot-files-in-windows-server-2008-or-2008-r2-if-the-server-wont-boot?lang=en
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JohnBusiness Consultant (Owner)Commented:
You said you ran the repair and it did not solve anything.

Can you boot to Safe Mode (F8) and run System File Checker?

Open cmd.exe with Run as Administrator and run SFC /SCANNOW.  Allow to complete and see if you can then restart in Normal Mode.
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Michael McGuireSystems AdministratorAuthor Commented:
Let me try and boot to safe mode.  Yes this is also a DC
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Michael McGuireSystems AdministratorAuthor Commented:
System will not boot to safe mode
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JohnBusiness Consultant (Owner)Commented:
You need to back up the data and documents (if you have not already done so) and reinstall the server OS.
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Michael McGuireSystems AdministratorAuthor Commented:
I have a daily backup that i run overnight. The O/S is installed on a separate RAID 1 set of HD's.  Won't this overwrite everything and cause me to have to reinstall all my software and have to restore my Active Directory?  There has to be another way to fix the boot?  I will try the first suggestion from Radhark
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

Try to boot into DSRM, have seen issues where server's won't boot into normal mode but can boot DSRM. If so, root cause would be ntds.dit corruption which required dcpromo  out and in.
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Michael McGuireSystems AdministratorAuthor Commented:
OK I am booted up to DSRM.  I logged in as the local administrator
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JohnBusiness Consultant (Owner)Commented:
Can you run SFC to correct the issues?
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Michael McGuireSystems AdministratorAuthor Commented:
Do i just run that from command prompt now.  what is the exact wording?
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JohnBusiness Consultant (Owner)Commented:
Make sure you open cmd.exe with Run as Administrator. In the black window:    SFC /SCANNOW

Allow it to complete. If it says it found errors but completed. run it again.  

Then restart in Normal Mode (if you can)
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Michael McGuireSystems AdministratorAuthor Commented:
Ok I ran i and it said i found no errors.
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Michael McGuireSystems AdministratorAuthor Commented:
When I look at the System Event viewer the latest entries state that it repaired system files
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JohnBusiness Consultant (Owner)Commented:
Then there is some other corruption in OS or maybe something corrupted in the disk file.
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Michael McGuireSystems AdministratorAuthor Commented:
I can attempt another normal reboot now and see what happens
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JohnBusiness Consultant (Owner)Commented:
It might work if SFC made corrections. Let's hope.
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

Before going for normal boot, you should have checked event logs for ntds corruption. Also an integrity check against ntds
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Michael McGuireSystems AdministratorAuthor Commented:
Well it didn't work so i am back log onto DSRM.  i can log at the event viewer
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Michael McGuireSystems AdministratorAuthor Commented:
Would a check disk help?
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

I would do an integrity check against the ntds.dit and make sure the database is OK.

Start>run>ntds utility. exe
Activate instance ntds
Files
Integrity

This will tell you about the db condition. If it fails or get jet database error, you may end up doing offline defragmentation or dcpromo
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Michael McGuireSystems AdministratorAuthor Commented:
That command just opens up a folder
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Michael McGuireSystems AdministratorAuthor Commented:
got jet database error
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Michael McGuireSystems AdministratorAuthor Commented:
I believe I just fixed it.  I put in my backup tape from Friday and just restored the system state.  Everything booted backup as normal
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

How many dc's you have? If it's single dc then I feel sorry for you.

More than 1 dc then demote and promote

If this is the single dc, and you have valid backup(note valid backup), then restore system state and c drive.

Hope you know the procedure n well versed with dcpromo.
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Radhakrishnan RSenior Technical LeadCommented:
OK.. I was typing from my phone before seeing ur update..
Glad to know it's working..
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Michael McGuireSystems AdministratorAuthor Commented:
Thanks for the Help!  Restore from System State is what ultimately worked.  Thank God for Backups!!!!!!
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Michael McGuireSystems AdministratorAuthor Commented:
Radhakrishnan R, first of all I thought i closed the question and assigned the points, something must of happened in my browser that didn't allow the closing and assigning of points.  For that I apologize, but next please wait for my response before accusing me of wasting your time.   I always stay engaged in my question and award points.   I will close this shortly and award points
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Michael McGuireSystems AdministratorAuthor Commented:
I object to the closing of this question (see my prior comment for explanation), so I can properly close it and award points
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JohnBusiness Consultant (Owner)Commented:
So it is now open and you can proceed.
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Michael McGuireSystems AdministratorAuthor Commented:
Restoring the System State from my backup in DSRM was the solution to my problem
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JohnBusiness Consultant (Owner)Commented:
Thanks
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