How to use QEMU after installing it on Ubuntu?

QEMU is an open-source virtual machine monitor that can simulate virtual machines on different hardware platforms. To install QEMU on Ubuntu, you can use the apt command.

sudo apt-get update
sudo apt-get install qemu

After the installation is complete, you can use the qemu command to start the virtual machine. Here is a simple example:

qemu-system-x86_64 -hda ubuntu.img -m 512

This command will start a virtual machine with x86_64 architecture, using the hard disk image ubuntu.img, with 512MB of memory.

To learn more about how to use QEMU and its options, you can refer to the official QEMU documentation or use the qemu -h command to view help information.

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