VT-x is not available caused by Docker for Windows


If you are trying to run Virtualbox on Windows, and received the error 'VT-x is not available (VERR_VMX_NO_VMX)'. Normally, the first thing is to check if the processor supports VT-x. If yes, then to see whether it has been enabled in BIOS? If yes, but you are still seeing this error. Then another possible reason … Continue reading VT-x is not available caused by Docker for Windows

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Missing NIC in cloned VirtualBox VM


If you ever encounter similar error 'Device eth0 does not seem to be present, delaying initialization' in the cloned VirtualBox VM, the fix is to remove this file (/etc/udev/rules.d/70-persistent-net.rules) and reboot the VM. The reason is that the new cloned VM generates new MAC addresses which do not match the previous ones that have been recorded … Continue reading Missing NIC in cloned VirtualBox VM