Re: after recreating mirror hard disk doesnot boot

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Bjorn Landemoo (mvp2.REMOVE_at_landemoo.com)
Date: 10/19/04 

Date: Tue, 19 Oct 2004 20:29:54 +0200

Abraham

If your hard disk is missing the Master Boot Record, MBR, booting will
result in a blinking cursor on an otherwise black screen, so this most
probably is your problem.

When you use software mirroring, you mirror partitions, and, since the MBR
is not a part of a partition, the MBR is not mirrored.

Your old disk A obviously had an MBR (it booted), but your disk B and the
new disk A probably doesn't have it.

FIXMBR should work, what it is supposed to do is just to write the MBR, in
order to solve this problem. I have no explanation why it didn't work for
you.

A possibility would be to break the mirror, delete the volume on disk A,
revert the disk to basic, and create a partition on it. This also writes
the MBR, so - after this - you could delete the partition again, upgrade to
dynamic and re-mirror.

Another possibility would be to use a third party utility, called MBRtool,
downloadable from: http://www.diydatarecovery.nl/

Best regards

Bjorn 

-- 
Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
Microsoft MVP (Windows Server - File System)
"Abraham" <Abraham@discussions.microsoft.com> wrote:
>Thanks Bjorn for your help. But I still have the problem persisting. I will 
>give more info regarding the issue. The current situation is as follows.
>
>I have two physical SCSI disks(call them A and B) 140 GB each.
>Both are dynamic disks.
>Drive A has one Volume C : on it
>Drive B has two voulmes C and G
>Drive B is mirrored to Drive A for volume C only.
>SCSI ID for Drive is 0 and drive B is 2 (not 1).
>I am using fault tolent floppy to boot to Drive B and its working fine.
>I tried booting from the Win @K CD and issued the commands fixboot c and 
>fixmbr on Drive A .
>Still when I start, after the BIOS there is no message at all. Its looks 
>like the system has stoped with a cursor blinking.
>If I use the floppy it again boots from Drive B as usual.
>
>Is there anything I can do for making the Drive A to boot or how can I make 
>sure its is bootable. 
>
>Thanks for any help.
>
>Regards,
>Abraham
>"Bjorn Landemoo" wrote:
>
>> Abraham
>> 
>> Boot to the recovery console and use the command FIXMBR, see this MS
>> Knowledge Base article:
>> 
>> http://support.microsoft.com/?id=318752
>> 
>> Also read this article:
>> 
>> http://support.microsoft.com/?id=266745
>> 
>> Best regards
>> 
>> Bjorn
>> -- 
>> Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
>> Microsoft MVP (Windows Server - File System)
>> 
>> "Abraham" <Abraham@discussions.microsoft.com> wrote:
>> 
>> >Hi all,
>> >   I had two hard disks (call it A and B)which were mirrored and eventually 
>> >the master drive(A) failed. So I used the Fault toelant disk to boot to the 
>> >second drive(B) successfully. Since my failed drive(A) had bad sectors I 
>> >replaced it with another new disk(call C) and recreated the mirror. But after 
>> >that when i restart it doesnot boot from the new disk. Everytime I have to 
>> >use the Floppy disk with boot.ini pointing to the now working drive(B). 
>> >    What should I do to boot from the new drive(c) ? I would like to avoid 
>> >using the floppy disk everytime to boot. Is there any solution for this ?
>> >
>> >Thanks in advance .
>> >
>> >regards,
>> >Abraham
>> 
>>

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