“virsh” shell for KVM.

virsh list --all

virsh define <xyz.xml>

virsh start <xyz>

virsh edit xyz

virsh vncdisplay xyz

Domain Format in KVM

In order to test your USB using KVM use following command.

qemu-kvm -hdb <device> 

In my case device was “/dev/sdb”.

use following command.

qemu-img convert own_Cloud.vmdk -O qcow2 ownCloud.qcow

what is ova - Open Virtualization Format

Download - Open Virtualization Format Tool

Install it, which give you command “ovftool”.

ovftool -tt=vmx Amazon-EC2-VM-Import-Connector.ova amazon_kvm

converting .ova is just easy
some times ovftool failing

<span style="color:red;font-size:150%;">If Above does not work just do</span> <p><span style="color:red;font-size:150%;"> tar -xvf Amazon-EC2-VM-Import-Connector.ova </span></p>

Now follow Converting VMWARE image for KVM

virt-install --name=own_cloud --arch=x86_64 \
--vcpus=1 --ram=512 --os-type=linux --os-variant=sles11 \
--hvm --connect=qemu:///system --network bridge:br0 \
--import --disk path=/home/vmware/ownCloud_in_a_box-1.0.4/ownCloud.qcow \
--accelerate --vnc --noautoconsole --keymap=us

NOTE :
- This will turn off your Guest.
- it will create snapshot in current working directory.
- Use `virsh pwd` to check your current working directory.

virsh save <Domain Name> <fileName>

help	 Prints basic help information.
list	 Lists all guests.
dumpxml	 Outputs the XML configuration file for the guest.
create	 Creates a guest from an XML configuration file and starts the new guest.
start	 Starts an inactive guest.
destroy	 Forces a guest to stop.
define	 Outputs an XML configuration file for a guest.
domid	 Displays the guest's ID.
domuuid	 Displays the guest's UUID.
dominfo	 Displays guest information.
domname	 Displays the guest's name.
domstate	 Displays the state of a guest.
quit	 Quits the interactive terminal.
reboot	 Reboots a guest.
restore	 Restores a previously saved guest stored in a file.
resume	 Resumes a paused guest.
save	 Save the present state of a guest to a file.
shutdown	 Gracefully shuts down a guest.
suspend	 Pauses a guest.
undefine	 Deletes all files associated with a guest.
migrate	 Migrates a guest to another host.

setmem	 Sets the allocated memory for a guest.
setmaxmem	 Sets maximum memory limit for the hypervisor.
setvcpus	 Changes number of virtual CPUs assigned to a guest.
vcpuinfo	 Displays virtual CPU information about a guest.
vcpupin	 Controls the virtual CPU affinity of a guest.
domblkstat	 Displays block device statistics for a running guest.
domifstat	 Displays network interface statistics for a running guest.
attach-device	 Attach a device to a guest, using a device definition in an XML file.
attach-disk	 Attaches a new disk device to a guest.
attach-interface	 Attaches a new network interface to a guest.
detach-device	 Detach a device from a guest, takes the same kind of XML descriptions as command attach-device.
detach-disk	 Detach a disk device from a guest.
detach-interface	 Detach a network interface from a guest.

create disk of size 10G

| for dynamic allocation

qemu-img create -f raw vdisk.img 10G 

OR

| preallowcation

dd if=/dev/zero of=vdisk.img bs=1G count=0 seek=[NUMBER_OF_GB]

Modify guest.xml file and listen variable.

| vi /etc/libvirt/qemu/Archlinux.xml

<graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.4' passwd='testing1'/>

This appears to be the far easy solution than I thought.
Link to official Document

For RHEL you require the following packages installed.

• libguestfs-tools
• libguestfs-xfs # if guest filesystem is XFS.

mkdir test
virt-copy-out -a machine2.qcow2 /metadata/testing/users test/

This is a simple way to extract or access files.
Scan and assign the dev node.

losetup --partscan --find --show sdcard.img

List all the block devices, including newly scanned.

lsblk --fs

Mounting the file system

mount /dev/loop0p2 /mnt/sdcard

Once unmounted remove the lo drive.

losetup --detach-all