Creating a bootable VHD the easy way. Extract the zip-package to a folder of your choice. For each extracted file select Properties and click on the Unblock button. Mount your installation media from an iso file or DVD. Look for the file “install.wim” on your installation media (see number 3 above) and remember the path, in my case F: sources install.wim.
Jun 14, 2017 AIO Boot supports integration and boot into Windows VHD in Legacy BIOS mode. This article will guide you to boot Windows VHD from UEFI mode. Create VHD; Windows Boot Manager; Create VHD. There are many tools that can help you create Virtual Hard Disk like AIO Boot and WinToHDD.

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Active2 years, 3 months ago

Greetings, Right now I am involved in a task to convert iso into.vhd that is to de deployed in azure cloud.First of all I tried it with Microsoft Virtual Machine Converter but the.VHD file which was produced did not work in azure cloud.

Once more, I have to resort at the experts here at SuperUser, as my other sources (mainly Google ;-)) didn't prove very helpful...

So basically, I would like to create a VHD image of a physical disk to be archived/accessed/maybe even mounted in a virtual machine.Now, there are dozens of articles and tutorials on how to do that on the web, but none that meets exactly the conditions I would like to achieve:

I would like the destination file to be a VHD image, as Windows 7 can mount it natively, even over the network and many other programs can use it (VirtualBox, ...)
The disk I'm trying to image contains a Windows XP install, so in theory, I could use the disk2vhd utility, but I would like to find a solution that doesn't require booting that Windows XP install (ie keep the disk read-only)
Thus I was searching for a solution involving some sort of live system (running from a USB stic or the network)

However, all the solutions that I've came across either make use of disk2vhd or use the dd command under linux, which does a complete copy of the disk (ie even empty blocks) and does not output a VHD file. Is there a tool/program under Linux that can directly create a VHD file? Or is is possible to convert a raw disk image created using dd to a VHD file, without allocating space for the empty blocks? How would you proceed?

As always, any advice or comment is highly appreciated!!

FedericoFederico

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6 Answers

For future reference, here is how I finally proceeded, with a few comments on the various issues or pitfalls encountered:

1. Boot the machine with a Linux live system

First step was to boot the machine containing the disk to image, using a Linux live system.

NOTE: My first idea was to use an Ubuntu Live USB disk, but the machine did not support booting from USB, so I found it easier to use an old Knoppix live CD.

2. Image the disk using `dd` and pipe the data through `ssh`

Then, I copied all the disk content to a file image on my local server using dd and piping the data through ssh:

$ dd if=/dev/hdX bs=4k conv=noerror,sync | ssh -c blowfish myuser@myserver 'dd of=myfile.dd'

A few comments here: this method will read all the disk contents, so it can take very long (it took me 5hrs for a 80Gb disk). The bottleneck isn't the network, but really the disk read speed. Before launching the copy, I advice to check the BIOS/disk/system parameters to ensure that the disk and the motherboard are working at their highest possible speed (this can be checked using the command hdparm -i and by running a test with hdparm -Tt /dev/hdX).

NOTE: dd does not output progress of the operation, but we can force it to do so by sending the USR1 signal to the dd process PID from another terminal:

$ kill -USR1 PIDofdd

3. Reclaim the unused space

At this point, the source machine is no longer needed and we will work exclusively on the destination server (running Linux as well). VirtualBox will be used to convert the raw disk image to the VHD format, but before doing so, we can zero out the unused blocks, so that VirtualBox does not allocate space for them in the final file.

In order to do so, I mounted the images as a loopback device:

NOTE: The offset indicating the beginning of the partition within the disk image can be obtained by using parted on the image file:

NOTE2: The default Linux kernel NTFS driver provides read-only access, thus it is necessary to install and use the userspace ntfs-3g driver or writing to the disk will raise an error!

4. Create the VHD image using VBoxManage

At this point, we can use the VirtualBox utilities to convert the raw image to a VHD file:

FedericoFederico

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I was trying to do exactly the same thing as the OP (while rescuing a Windows installation) and ended up creating a new tool for it, ntfsclone2vhd.

You would then simply do something like this:

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YirkhaYirkha

One approach is to use a couple of handy technologies: VirtualBox, and the ntfsprogs package.

Recent versions of VirtualBox allow you to create VHD hard disk files, while ntfsprogs provides the ntfsclone utility. As its name suggests, ntfsclone clones NTFS filesystems, and I believe that it does it at the filesystem level, skipping over unused disk blocks.

So, to begin, create a new VM in VirtualBox, and provision a new, empty VHD-file drive for it. The VHD drive need only be as large as the size of data in use on the physical drive you want to clone (well actually, make it a little bit larger, to allow for some wiggle room).

Next, find a Linux live CD that contains the ntfsprogs package, as well as openssh-server. I like System Rescue CD for this, but pretty much any Debian- or Ubuntu-based live CD should work as well.

Boot the VirtualBox VM with the Linux live CD, and start sshd within the VM so that you will be able execute commands on it remotely. Partition the empty VHD drive approriately, using whatever partitioning tool you prefer (I like plain old fdisk, but I'm somewhat old school).

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With another copy of the Linux live CD, boot the machine containing the physical disk you want to clone. I assume that the VirtualBox VM and this machine are accessible to each other over the network. On this machine, execute the following command (all on one line):

where:

/dev/sdXX is the device name (on the local machine) of the physical drive you want to clone, and
/dev/sdYY is the device name (in the VM) of the VHD destination drive.

Explanation: The first ntfsclone command in the pipeline extracts an image of the source NTFS filesystem and sends it out through the ssh tunnel, while the second ntfsclone command receives the image and restores it to the VHD drive.

Once the operation completes, the VHD file should contain a file-for-file exact clone of the original physical disk (barring any hardware errors, like bad sectors, that might cause the process to abort prematurely).

One last thing you may want to do is to run a Windows chkdsk on the V