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Retrieving Data from VHD File (Virtual Machine Harddrive)

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Operating Systems Linux Retrieving Data from VHD File (Virtual Machine Harddrive)
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Old 01-19-2012
Retrieving Data from VHD File (Virtual Machine Harddrive)
Hello,

I had Gentoo installed on a Microsoft Windows Hyper-V virtual machine. The system shutdown properly but the RAID array on the drive it was on failed. We had a backup that was poorly configured and as such we didn't back up all of the data we needed.

Therefore, after getting the RAID array back to a degraded state I was able to get the VHD files (virtual machine harddrives) off of the RAID array but the tools I would use to mount them do not work as they say the file could be corrupted. I cannot use the Windows-based utilities as they only recognize NTFS formatted partitions and as such I cannot recover any files with those tools.

Does anyone know or have experience with recovering or accessing VHD files in Linux?

The ideal scenario would be if I can somehow mount these drives in a Gentoo or other Linux-based OS which I could then try and recover files with. Even if the files don't mount is there a tool that can scan drives mounted in Linux for recoverable files?

Thank you for your time.
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LEARN ABOUT FREEBSD

hv_kvp

HYPER-V(4)						   BSD Kernel Interfaces Manual 						HYPER-V(4)

NAME

     hv_kvp -- Hyper-V Key Value Pair Driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in the system kernel configuration file:

	   device hyperv

DESCRIPTION

     The hv_kvp driver provides the ability to store, retrieve, modify and delete key value pairs for FreeBSD guest partitions running on Hyper-V.
     Hyper-V allows administrators to store custom metadata in the form of key value pairs inside the FreeBSD guest partition.	Administrators can
     use Windows Powershell scripts to add, read, modify and delete such key value pairs.

     The driver is bare bones and merely forwards requests to its counterpart user mode daemon, hv_kvp_daemon(8).  The daemon maintains pools of
     key value pairs and does the actual metadata management.

     The same driver and daemon combination are also used to set and get IP addresses from a FreeBSD guest.

     The set functionality is particularly useful when the FreeBSD guest is assigned a static IP address and is failed over from one Hyper-V host
     to another.  After failover, Hyper-V uses the set IP functionality to automatically update the FreeBSD guest's IP address to its original
     static value.

     On the other hand, the get IP functionality is used to update the guest IP address in the Hyper-V management console window.

SEE ALSO

     hv_ata_pci_disengage(4), hv_netvsc(4), hv_storvsc(4), hv_utils(4), hv_vmbus(4), hv_kvp_daemon(8)

HISTORY

     Support for hv_kvp first appeared in FreeBSD 10.0.  The driver was developed through a joint effort between Citrix Incorporated, Microsoft
     Corporation and Network Appliance Incorporated.

AUTHORS

     FreeBSD support for hv_kvp was first added by Microsoft BSD Integration Services Team <bsdic@microsoft.com>.

BSD
								September 10, 2013							       BSD