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How to create a Disk image in OpenNebula?

  • CloudSim is a framework which contains libraries and does not have to be installed. We need to unpack the downloaded package on any directory, add it to the Java classpath and it is ready to be used.
Step 1:Start OpenNebula

i) Login as the oneadmin user in Terminal.

Type the following command.
<one start>

create a Disk image in OpenNebula

(ii) Start the OpenNebula SunStone.

Type the following command.

<service opennebula-sunstone start>

Start the OpenNebula SunStone

Step 2: Login OpenNebula Sunstone

Go to https://localhost:9869 .

Login into OpenNebula Sunstone.

Login OpenNebula Sunstone


Password-xxxxxxxxx and click on “Login” button.

OpenNebula Dashboard screen will be displayed.

OpenNebula Dashboard

Step 3: Create a Disk Image
  • In OpenNebula Dashboard, click the “Images” under the “Storage” Tab which is appeared in the Left side menu. Create a Disk Image
  • Click the “+” button to add a new image. add a new image
  • Set the Disk image parameters as per the following specifications: .

    Name = "image name"
    Type = Generic storage datablockTick
    "This image is persistent"
    Set Image Location to “Empty disk image”
    Size = "your required space in MB"
    Advanced Options
    BUS = Virtio
    Image Mapping driver=qcow2

  • Click “Create” button. Set the Disk image parameters
  • Now Disk image is created in OpenNebula..