svMotion and losing the MBR

very strange situation today. I performed a single disk svMotion on my vCenter VM which also had 4 mapped raw LUNs. However, after a reboot, the VM never came back on line saying that it cannot find the boot device.

after much tinkering around, I performed the following to get my vCenter back:

Attached Server 2012 ISO to the VM.
Launched Repair

From the command prompt
select disk 0
select partition 2 (this will depend on your windows installation, if you remember it)

then the following commands

bcdboot c:windows

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
bootrec /scanos.



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