64 lines
2.7 KiB
HTML
64 lines
2.7 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<style type="text/css">
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body {
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width: 16cm;
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margin: auto;
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}
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</style>
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<title>Building a VM with virt-install</title>
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</head>
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<body>
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<h1>Building a VM with virt-install</h1>
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<h2>Introduction</h2>
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<p>This assumes that the network will be used in <em>macvtap</em> mode.
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This is the preferred method, as it is faster than a regular bridge and does not need any additional network configuration on the host.</p>
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<p>The disadvantage of macvtap is that host-to-vm and vm-to-host communication is blocked.
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This can be worked around with an <em>internal</em> switch, or by having the macvtap connection bind to a second interface.</p>
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<h2>Creating the VM</h2>
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<p>The following command assumes the machine type is <em>linux2020</em> and the network card is <em>eno1</em>.
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It should be run as the root user or with sudo, and should be run inside tmux for safety.</p>
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<pre><kbd>virt-install --name <mark>rhel9</mark> \
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--osinfo linux2020 \
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--boot uefi \
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--cdrom <mark>/var/lib/libvirt/isos/rhel-baseos-9.1-x86_64-dvd.iso</mark> \
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--disk <mark>/var/lib/libvirt/images/rhel9.qcow2,size=20</mark> \
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--network type=direct,source=<mark>enp2s0</mark>,source_mode=bridge \
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--graphics vnc \
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--console pty,target.type=virtio \
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--autoconsole none</kbd></pre>
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<p>Highlighted paths and names should be changed as appropriate.
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The VNC port can be found for this example by running <kbd>virsh vncdisplay rhel9</kbd>.</p>
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<h2>Alternative install options</h2>
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<p>Import a template image by copying the template into place and replacing <code>--cdrom /path/to/disc.iso</code> with <code>--import</code>.
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The file size is not needed in the <code>--disk</code> option in this case.</p>
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<p>PXE-boot a VM by replacing the <code>--cdrom /path/to/disc.iso</code> option with <code>--pxe</code>.</p>
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<h2>Tips</h2>
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<p>For a virtio network card on Windows machines, add <code>model=virtio</code> to the <code>--network</code> option.</p>
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<p>Other useful options are <code>--memory 4096</code> for 4 GB RAM, and <code>--vcpus 2</code> for a dual-CPU guest.</p>
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<p>A list of supported operating systems can be found by running <kbd>virt-install --osinfo list</kbd>.</p>
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<p>If the host hypervisor has a bridged network set up already, such as <em>br0</em>, replace the <code>--network</code> option with <code>--network bridge=br0</code>.</p>
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</body>
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</html>
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