Step 12: Click on Storage, and inside Storage, you want to select the empty disk, then click on the little disk on the right-hand side. Step 11: Click on display and set up the display for 128 GB. Step 10: Click on the Ubuntu virtual machine, go to the settings button, and then go to the system and increase the processor to 8 GB. Step 9: For the hard disk space, select 30GB, and then click on Create. Step 8: Select dynamically allocated and click Next. Step 7: Select VDI (Virtual Disk Image) and click Next. Step 6: Select Create a Virtual Hark Disk File and click Create. However, when you get to the hard disk selection, select 'Use an existing virtual hard disk file' ( Figure A) and then navigate to the ubuntu-core-16-amd64.vdi image created with the VBoxManage command.Step 5: In the memory size, select 10GB and click Next. Do this as you would create any normal VM.

VBoxManage modifyhd ubuntu-core-16-amd64.vdi -resize 20480Īt this point, you can create the Ubuntu Core virtual machine ( VM) in VirtualBox. Let's resize that to a 20 GB image with the command: VBoxManage convertdd ubuntu-core-16-amd64.img ubuntu-core-16-amd64.vdi -format VDIĪlthough the resulting file is viable for VirtualBox, it's small. You now have a raw disk image that can convert into a form that VirtualBox can use.

Once that file downloads, unpack the image with the command:

Open up a terminal window on your Linux host and issue the following command to download the compressed Ubuntu Core image file: Let's walk through the process to download, install Ubuntu Core and log in - using VirtualBox running on an Elementary OS host as an example.īefore you continue, make sure you have an account with Ubuntu's single sign-on service and a secure shell key on your host system.

Install ubuntu on vm