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How To "Untwin" Duplicated Hard Drives

Posted: Wed Feb 06, 2013 10:31 am
by aussieboykie
My brother used Copywipe to create a sector by sector duplicate of his hard drive which contains System, Windows7, Data, and Recovery partitions as well as Bootit Bare Metal. "System" is the Windows 100MB installation partition. Windows7 is his day to day system. Source and target disks are each 1TB.

The outcome is two (initially) identical drives with the same disk signature. Each is bootable, but having booted Windows from either one, the other can't be mounted because of the disk signature duplication. What's the safest and quickest way of getting to the point where either can still be booted but both can coexist with Windows up and running?

Regards, AB

P.S. In order to avoid this happening again, what's the recommended method of cloning a whole drive so that the target is both bootable as an emergency backup, and mountable in tandem with the original drive? He has the full Image/Bootit suite.

Re: How To "Untwin" Duplicated Hard Drives

Posted: Wed Feb 06, 2013 3:02 pm
by DrTeeth
Google "change disk signature"?

Re: How To "Untwin" Duplicated Hard Drives

Posted: Wed Feb 06, 2013 4:26 pm
by TeraByte Support
Use Image for DOS/Linux/Windows instead and use the "Change Disk Signature"
option.


"aussieboykie" wrote in message news:4613@public.bootitbm...

My brother used Copywipe to create a sector by sector duplicate of his hard
drive which contains System, Windows7, Data, and Recovery partitions as well
as Bootit Bare Metal. "System" is the Windows 100MB installation partition.
Windows7 is his day to day system. Source and target disks are each 1TB.

The outcome is two (initially) identical drives with the same disk
signature. Each is bootable, but having booted Windows from either one, the
other can't be mounted because of the disk signature duplication. What's the
safest and quickest way of getting to the point where either can still be
booted but both can coexist with Windows up and running?

Regards, AB

P.S. In order to avoid this happening again, what's the recommended method
of cloning a whole drive so that the target is both bootable as an emergency
backup, and mountable in tandem with the original drive? He has the full
Image/Bootit suite.


Re: How To "Untwin" Duplicated Hard Drives

Posted: Wed Feb 06, 2013 7:39 pm
by aussieboykie
TeraByte Support wrote:
> Use Image for DOS/Linux/Windows instead and use the "Change Disk Signature"
> option.

Thanks for the suggestion. Can you please explain in more detail. Do you mean.....?

1. Full disk backup of HDD-1 using IFD/IFL/IFW.
2. Full disk restore to HDD-2 using IFD/IFL/IFW with the Change Disk ID option.

We have been through the Russinovich stuff at http://blogs.technet.com/b/markrussinov ... 63572.aspx and just changing the signature on HDD-2 causes the dreaded 0xc000000e Boot Selection failure message because Windows and the signature are misaligned.

Regards, AB

Re: How To "Untwin" Duplicated Hard Drives

Posted: Thu Feb 07, 2013 7:19 am
by TeraByte Support
You can either do a "copy" or a "backup"/"restore".

"aussieboykie" wrote in message news:4616@public.bootitbm...

TeraByte Support wrote:
> Use Image for DOS/Linux/Windows instead and use the "Change Disk
> Signature"
> option.

Thanks for the suggestion. Can you please explain in more detail. Do you
mean.....?

1. Full disk backup of HDD-1 using IFD/IFL/IFW.
2. Full disk restore to HDD-2 using IFD/IFL/IFW with the Change Disk ID
option.

We have been through the Russinovich stuff at

[
http://blogs.technet.com/b/markrussinov ... 63572.aspx
](http://blogs.technet.com/b/markrussinovich/archive/2011/11/08/3463572.aspx)

and just changing the signature on HDD-2 causes the dreaded 0xc000000e Boot
Selection failure message because Windows and the signature are misaligned.

Regards, AB


Re: How To "Untwin" Duplicated Hard Drives

Posted: Thu Feb 07, 2013 11:49 pm
by Bob Coleman
aussieboykie,

Note that IFD (and probably the other image programs, I don't know) has a Copy function if hadn't noticed that.