Bootmgr is Missing

[Pipboy78]

Hello,

For some context: I have performed windows updates on a virtualised SBS 2011 machine. Bootmgr is missing on boot.

I have uploaded the SBS media to the datastore and am able to boot into Windows repair.

The disk is unable to be found for repair.

It is asking to load drivers for the disk - but I am unsure where to locate these.

Can anyone steer me in the right direction?

[ChintanWaghmare]

Hello,

have you tried recovery through command prompt ?

1. Put the SBS installation disc in the disc drive, and then start the computer.
2. Press a key when the message Press any key to boot from CD or DVD  appears.
3. Select a language, a time, a currency, a keyboard or another input method, and then click Next.
4. Click Repair your computer.
5. Click the operating system that you want to repair, and then click Next.
6. In the System Recovery Options dialog box, click Command Prompt.
7. Type Bootrec /RebuildBcd, and then press ENTER.

You can try below commands as well :

BOOTREC /FIXMBR

BOOTREC /FIXBOOT

or try the microsoft KB :  http://support.microsoft.com/kb/2501318

[ChintanWaghmare]

Alternatively you can also try attaching the existing disk to another virtual machine and try rebulding the boot manager using TestDisk utility.

You can download the utility from here

The recovery procedure is mentioned here

Its for VHD (Hyper-v) files, but I guess it would work for vmware disk as well. Give it a try :smileyhappy:

[Pipboy78]

Hi Thanks for replying,

I did oringally try MS kb articles but it did not work.

I have tried TestDisk - and it is saying the boot sector and current boot sector is identical - I do not have the option to 'write'

Would there be a way to 'load drivers' for the disk from the traditional windows repair method?

[ChintanWaghmare]

Hello,

About TestDisk method did you selected "Rebuild BS." ? you would get a write option only after that.

Anyways, you can try loading the SCSI controller device drivers into Windows mentioned in the VMware KB article here ,

by attaching the disk to new vm and then importing the registry or the way you like.

I guess, after loading these drivers you would be able to see your drive in windows repair method and then you can continue your further process of fixing boot manager.

[Pipboy78]

Unfortunately I still do not have that option to write.

I have tried to inject the drivers however from that KB the floppy drivers do not work.

[amanvcp]

You might want to double check some of these:

Edit settings for VM > Check to make sure the disks are in order.

Try booting to recovery console > run check disk with option to recover.

If you have any snapshots to get back to..Try that.

Last try the FIXMBR solution.