XEN cannot start windows 2003. error 0x0000007b, 0xf789aa98

We had a virtualized environment with xen V3 and windows 2003 servers (r2sp2).

Last weekend the domain controller crashed. When I try to restart it it powered on and of again.
I did a reboot from the whole xen server (HP DL380). And now my domain controller won't boot
anymore! It gives the error 0x0000007b, 0xf789aa98 cannot boot. Check disk with chkdsk.

I did that, but no errors came up. I have 2 windows 2003 servers left, but no one can access the system because the fsmo role holder is down. Anyone a clue ?
thisis_itIT ManagerAsked:
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7b can be caused by volume corruption,  which you checked for.  Additionally it can be caused by corrupt or missing disk controller drivers.  Typically I wouldn't think this would be much of an issue in a virtualized envrionment.   Lastly it can be caused by a 3rd party driver or service such as an HBA driver or antivirus filter driver.

Does it boot into safe mode?

If not...I say try doing a repair install (won't hurt a domain controller) and see what happens.

If it will boot into safe mode,  you can try using MSCONFIG to disable all 3rd party services and see if that clears it up.


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thisis_itIT ManagerAuthor Commented:
PlaceboC6; I also think it has to do something with the controller. I ask the xen guy to make a clone of the domain controller, just in case. It doesn't boot in safe mode, so other troubleshooting is not

When I do a repair install, i need the last system state backup ? And are you sure it doesn't hurt a domain controller ?
thisis_itIT ManagerAuthor Commented:
Thanks ! This helped my in finding a quick solution to solve the problem
A repair install is the same as an "in-place upgrade".  I would just ensure the media you have has the same service pack level as what is installed on the server for the least issues.  But yes,  I have done plenty of repair installs on dc's with no issue.
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