Red Hat SummitChapter 7. Guest installation overview
After you have installed the virtualization packages on the host system you can create guest operating systems. You can create guests using the button in virt-manager or use the command line interface
virt-install. Both methods are covered by this chapter.
Detailed installation instructions are available for specific versions of Red Hat Enterprise Linux, other Linux distributions and Windows. See Chapter 8, Guest operating system installation procedures for those procedures.
7.1. Creating guests with virt-install
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You can use the
virt-install command to create guests from the command line. virt-install is used either interactively or as part of a script to automate the creation of virtual machines. Using virt-install with Kickstart files allows for unattended installation of virtual machines.
The
virt-install tool provides a number of options one can pass on the command line. To see a complete list of options run:
$ virt-install --help
The
virt-install man page also documents each command option and important variables.
qemu-img is a related command which may be used before virt-install to configure storage options.
An important option is the
--vnc option which opens a graphical window for the guest's installation.
Example 7.1. Using virt-install with KVM to create a Red Hat Enterprise Linux 3 guest
This example creates a Red Hat Enterprise Linux 3 guest, named
rhel3support, from a CD-ROM, with virtual networking and with a 5 GB file-based block device image. This example uses the KVM hypervisor.
# virt-install --accelerate --hvm --connect qemu:///system \
--network network:default \
--name rhel3support --ram=756\
--file=/var/lib/libvirt/images/rhel3support.img \
--file-size=6 --vnc --cdrom=/dev/sr0
Example 7.2. Using virt-install to create a fedora 11 guest
# virt-install --name fedora11 --ram 512 --file=/var/lib/libvirt/images/fedora11.img \
--file-size=3 --vnc --cdrom=/var/lib/libvirt/images/fedora11.iso
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