VMware ESXi (vSphere) is not officially supported, but you can use nested virtualization for verification. Using this, I thought of installing Ubuntu (Linux) as a guest OS of ESXi, and using VirtualBox within it.
Eventually I wanted to use PCF Dev (Pivotal Cloud Foundry Develop), but failed nested virtualization failed and failed ...
- Server Spec
- Setting for nesting ESXi
- VT-x is not available
- CPU (Core 2 Quad) does not support guest virtualization
- CPU: 1 CPU 2 core
- Memory: 3 GB
- DISK: 64 GB
- Virtual Box 5.1
Setting for nesting ESXi
In order to have a nested configuration, additional configuration is required. Activate VT-x of the guest OS as follows and restart the service.
# vi /etc/vmware/config libdir = "/usr/lib/vmware" authd.proxy.nfc = "vmware-hostd:ha-nfc" authd.proxy.nfcssl = "vmware-hostd:ha-nfcssl" authd.proxy.vpxa-nfcssl = "vmware-vpxa:vpxa-nfcssl" authd.proxy.vpxa-nfc = "vmware-vpxa:vpxa-nfc" authd.fullpath = "/sbin/authd" vhv.enable = TRUE // add # /etc/init.d/hostd restart watchdog-hostd: Terminating watchdog process with PID 98940 hostd stopped. Ramdisk 'hostd' with estimated size of 127MB already exists hostd started. ~ #
By default, vSphere's guest OS does not have VT-x enabled. Poweroff the virtual machine and change the setting. "CPU / MMU virtualization" in the "Options" tab defaults to "Automatic" "Intel VT-x / AMD-v used for instruction set virtualization and software to MMU virtualization Use"is selected. Work in the order of virtual machine poweroff> change setting> virtual machine power on.
VT-x is not available
I encountered an error in the above PCF Dev installation.
Error: failed to start VM: failed to execute 'VBoxManage startvm pcfdev-v0.389.0 --type headless': exit status 1: VBoxManage: error: VT-x is not available (VERR_VMX_NO_VMX)
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ConsoleWrap, interface IConsole
Waiting for VM "pcfdev-v0.389.0" to power on...
VBoxManage: error: VT-x is not available (VERR_VMX_NO_VMX)
It seems that VT-x (CPU virtualization mechanism) is not working.
vSphere Client Error
The guest OS is powered off and looking at the summary screen, it is in the following state. I can not start the virtual machine. Such errors are displayed on the summary screen.
However, an error occurred when trying to power on. Failure ...
CPU (Core 2 Quad) does not support guest virtualization
I found the following discussion when I was investigating without knowing the cause.
Core 2 systems do not support EPT, so you will not be able to run nested 64-bit VMs.
Core 2 Quad (Duo) can not use nested virtualization. I need to change to CPU of Core i series or higher.