How to run a virtual machine in Ubuntu using QEMU?

To run a virtual machine in Ubuntu using QEMU, you need to follow the following steps:

1. Install QEMU: Input the following command in the terminal to install QEMU:

sudo apt-get update
sudo apt-get install qemu

1. Download and prepare a virtual machine image: Obtain a virtual machine image file, which can be downloaded online or created manually.
2. To start the virtual machine, input the following command in the terminal, where VM_IMAGE is the path of the virtual machine image file:

qemu-system-x86_64 -hda VM_IMAGE

1. Optional parameters: You can add some parameters to configure the virtual machine, such as setting the memory size and CPU count. For example, setting the memory size of the virtual machine to 2GB.

qemu-system-x86_64 -hda VM_IMAGE -m 2048

1. Control plus Alternate

The steps above are a simple guide on using QEMU to run a virtual machine on Ubuntu, hope it helps you.