In the latter case, that is the default, the space occupied on the host grows as the virtual disk is used, which comes in handy when we don’t know how much space we need in advance. We can create a fixed-size (preallocated) or variable-size (non-preallocated) QCOW2 disk. In this example, we choose QCOW2, the QEMU’s native format, because it has several advantages over the other formats related to snapshots, space efficiency, compression, near-raw performance, multi-threading, error handling, memory usage, and encryption capabilities. Before proceeding further, let’s download the distro’s ISO. Let’s now see how to install Linux Mint 21.1 Cinnamon edition on a guest QEMU machine within a host running the same operating system. Consistency → Terminal commands ensure consistency across different platforms and environments.The terminal’s lower resource usage also makes it a good choice for running multiple virtual machines simultaneously on a single system. Resource Usage → Using the terminal reduces resource usage compared to GUI frontends, especially on systems with limited resources, such as older computers or embedded systems.Remote Access → The terminal allows for remote access and management of QEMU virtual machines. Scriptability → Automation and scripting of QEMU commands are more straightforward in the terminal.Flexibility → Terminal commands allow more customization options and fine-grained control.Using QEMU from the terminal has several advantages over using a graphical frontend:
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