However when using -cpu Nehalem ( also an i7 CPU) everything worked well. My machine has an IvyBridge processor (Core i7): $ sysctl -n _stringĪnd using -cpu IvyBridge would fail. I fixed it by specifying the CPU architecture manually (see qemu-system-x86_64 -cpu help for a list of all available architectures). -display: To show the mouse cursor (disabled by default)ĭuring testing I had problems with the Linux kernel as it would panic during the boot process.I’m running this on a laptop and without this setting the mouse did not work. -device Adding a “usb-tablet” as an input device.
I found virtio (based on Virgil to have the best performance -cdrom: The ISO image to put into the CD drive.-hda: Disk drive (the one we created earlier).q35 is the newest machine type and HVF is the macOS native hypervisor. -machine: The emulated machine and the accelerator.In this step we boot up the machine with the Ubuntu ISO mounted in the CD drive: qemu-system-x86_64 \ We can now boot up the machine with the Ubuntu ISO attached as a qemu-img create -f qcow2 ubuntu-20.04.1-desktop-amd64.qcow2 20G Boot machine with Ubuntu ISO mounted The Ubuntu installation took around 5GB of space when I installed it. We’re using the QCOW2 format to create a 20GB image. Once the installation is done, we can create the disk image that we’re going to install Ubuntu on. It will pull in a few dependencies (the package depends on 14 other packages) and the installation can take a few minutes. The version we’re using in this tutorial is 5.1.0: $ brew install qemuĬopyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers This changed 2 years ago when the project added support for the macOS native hypervisor with amework (HVF) as an accelerator.īefore we begin with the setup I assume that the Ubuntu 20.04 Desktop ISO has been downloaded in the current working directory. Using QEMU on macOS used to be very slow as no accelerator was available. The most popular accelerator is KVM which is built into the Linux kernel and allows Linux hosts to run VMs with native performance.
QEMU is a hardware emulator which can make use of different accelerators when running VMs. Note for users on macOS 11.0: follow this post first to get qemu to run. In this blog post we’re going to create a Ubuntu 20.04 VM using QEMU on MacOS. Using QEMU to create a Ubuntu 20.04 Desktop VM on macOS Home Using QEMU to create a Ubuntu 20.04 Desktop VM on macOS September 20, 2020
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