Virtualization

Run virtual machines at near-native speeds and manage them at ease

Virtualization Installing QEMU on Fedora Linux Fetching OVMF UEFI from the correct source Installing libvirt and virt-install on Fedora Linux Setting up Fedora Workstation VM on QEMU using BIOS Setting up Fedora Workstation VM on QEMU using UEFI Setting up intrinsic VNC server with VMs Setting viewport resolution using OVMF BIOS Setting up Fedora Workstation domain on libvirt Sharing a chunk of memory as video memory in QEMU Mapping a virtualized guest port to a host port Playing around with various VGA providers Offloading domain TTY output to console with custom kernel/initramfs images Offloading domain TTY output to console with original kernel/initramfs images
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Mapping a virtualized guest port to a host port

  1. Download the Fedora Workstation ISO file from website and store it in a reference directory cdromimg. 
    https://getfedora.org
  2. Start a virtual machine for mapping a virtualized guest port to a host port for the live ISO and there is no need for a virtual disk image here. 
    $ qemu-system-x86_64 \
    -boot menu=on \
    -m 4096 \
    -cpu max \
    -smp 4 \
    -cdrom cdromimg/<Fedora-Workstation-Live-x86_64-xx-y.z.iso> \
    -accel kvm \
    -net nic \
    -net user,hostfwd=tcp::2323-:22
  3. Wait for the virtual machine to boot up.
    01
  4. In a new terminal session on the guest, execute the following command to the enable the OpenSSH service. 
    $ sudo systemctl enable --now sshd.service

    02

  5. Now change the password of the current user by executing the following command in the terminal session on the guest. 
    $ passwd

    03

  6. In a new terminal session on the host, execute the following command to connect to the guest using SSH. 
    $ ssh liveuser@localhost -p 2323

    04
    OR
    In a new terminal session on a device connected to the same network, execute the following command to connect to the guest using SSH.

    $ ssh liveuser@<ip-address-of-the-host-device> -p 2323

    05

  7. Execute the following command in to logout of the session. 
    $ logout
  8. This was an example of mapping port 22 of the virtualized guest with port 2323 of the host with TCP for the purposes of SSH and this can be reused with slight changes to accommodate other use-cases.

Authors: Akashdeep Dhar, Jarek Prokop, Nick Dirschel