libvirt
QEMU is a fast, cross-platform open source machine emulator which can emulate a huge number of hardware architectures for you. QEMU lets you run a complete unmodified operating system (VM Guest) on top of your existing system (VM Host Server).
This section documents how to set up and use openSUSE Leap 15.2 as a QEMU-KVM based virtual machine host.
The libvirt
-based tools such as
virt-manager
and virt-install
offer convenient interfaces to set up and
manage virtual machines. They act as a kind of wrapper for the
qemu-system-ARCH
command. However, it is also possible to
use qemu-system-ARCH
directly without using
libvirt
-based tools.
Once you have a virtual disk image ready (for more information on disk images, see Section 29.2, “Managing Disk Images with qemu-img”), it is time to start the related virtual machine. Section 29.1, “Basic Installation with qemu-system-ARCH” introduced simple commands to install and run a VM Guest. …
When QEMU is running, a monitor console is provided for performing interaction with the user. Using the commands available in the monitor console, it is possible to inspect the running operating system, change removable media, take screenshots or audio grabs and control other aspects of the virtual …