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How would you set the boot order on KVM when using libvirt/virsh? (Either via config or command)
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A simple way to set this order is to use the -boot order= option, but you can also do this more flexibly, by setting a bootindex property on the individual block or net devices you specify on the QEMU command line.
libvirt is an open-source API, daemon and management tool for managing platform virtualization. It can be used to manage KVM, Xen, VMware ESXi, QEMU and other virtualization technologies. These APIs are widely used in the orchestration layer of hypervisors in the development of a cloud-based solution.
libvirt stores it's configuration as xml in '/etc/libvirt/qemu'. The xml is easy to understand, and is similar to VMware *.
Please take a look at the section Operation System booting.
The most common option is the BIOS bootloader where it allows you specifying boot order via changing domain XML. try command virsh edit <your-domain-name> then adjust the boot order with this example (copied from libvirt.org):
<os>
<type>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<boot dev='network'/>
<boot dev='cdrom'/>
<boot dev='hd'/>
<bootmenu enable='yes'/>
</os>
Which means the boot order is:
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