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prep for virtualization on centos7: yum install qemu-kvm qemu-img libvirt libvirt-client virt-manager virt-install virt-viewer vi /etc/libvirt/qemu.conf # search "user" and "group", change both to root, maybe only group needed? NO, add the user to the libvirt or the libvirtd group check which group exists -- different distros may have different groupnames # if error happens upon virt-manager starting, do these: rmmod kvm_intel # or amd rmmod kvm modprobe kvm modprobe kvm_intel systemctl enable libvirtd systemctl start libvirtd wget http://mirror.oss.ou.edu/centos/7/isos/z86_64/CentOS-7-x86_64-Minimal-1804.iso virt-manager # brings up the GUI # customize before install # copy host cpu config spin up a VM from the command line: sudo virt-install \ --name <vmname> \ --memory <4096> \ # in mb --disk size=<32> \ # in gb --location </path/to/installation/iso> \ --vcpus <2> \ --os-variant <ostype> \ # for centos 7.x use "centos7.0" --network bridge=br0 \ # does the bridge already have to exist? dunno --extra-args "console=ttyS0" \ # lets you access the virtual terminal so you can do stuff in the VM --graphics none