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To keep it very simple install Layer 0 as Ubuntu Desktop, then use Virt Manager as UI to create Layer 1 machine. And all additional layers of virtulisation hosting that you might want to add. NOTE 2: The pre-condition checks should be done on both Layer 0 & Layer 1 machines. If you believe your machine should support virtulisation (based on CPU type) but isn't then check your BIOS setting by doing power up boot and going into BIOS configuation. NOTE 1: On some machines you might also have to enable virtualization via BIOS configuration. LXC: Checking if device /sys/fs/fuse/connections exists : PASS LXC: Checking for cgroup 'blkio' controller support : PASS LXC: Checking for cgroup 'freezer' controller support : PASS LXC: Checking for cgroup 'devices' controller support : PASS LXC: Checking for cgroup 'memory' controller support : PASS LXC: Checking for cgroup 'cpuset' controller support : PASS LXC: Checking for cgroup 'cpuacct' controller support : PASS LXC: Checking for cgroup 'cpu' controller support : PASS QEMU: Checking if IOMMU is enabled by kernel : PASS QEMU: Checking for device assignment IOMMU support : PASS QEMU: Checking for cgroup 'blkio' controller support : PASS QEMU: Checking for cgroup 'devices' controller support : PASS QEMU: Checking for cgroup 'memory' controller support : PASS QEMU: Checking for cgroup 'cpuset' controller support : PASS QEMU: Checking for cgroup 'cpuacct' controller support : PASS QEMU: Checking for cgroup 'cpu' controller support : PASS QEMU: Checking if device /dev/net/tun exists : PASS QEMU: Checking if device /dev/vhost-net exists : PASS QEMU: Checking if device /dev/kvm is accessible : PASS QEMU: Checking if device /dev/kvm exists : PASS QEMU: Checking for hardware virtualization : PASS Reboot your machine after adding configuration is it was not already there.įinally you can check your machine is all set up correctly by doing libvirt check: $ virt-host-validate Here is an example: $ cat /etc/modprobe.d/nf conf suffix and be in the /etc/modprobe.d directory. The name if the file is not important but it must have. If it is not enabled then you can configure by adding your configuration file. $ cat /sys/module/kvm_amd/parameters/nested $ cat /sys/module/kvm_intel/parameters/nested ![]() It is enabled via /etc/modprobe.d/YOUR_nf file. /sys/module/kvm_amd/parameters/nested - AMD./sys/module/kvm_intel/parameters/nested - Intel or.Having verified that nesting is supported you need to check if it is enabled. To check if this is available you can do a grep (-c for count) on /proc/cpuinfo. To support nested virtualisation requires: Intel VT-x vmx feature or AMD AMD-V svm feature. NOTE: I have re-tested using Ubuntu 21.04 (Hirsute Hippo) and using all 21.04 machines (on Intel server) and this works as per these instructions. Create Layer 2 Machine within Layer 1 Machine - via Virtual Machine Manager (again).Create Layer 1 Machine - via Virtual Machine Manager. ![]()
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