In this tutorial, you will learn how to convert between virtual machine image formats (including qcow2, vdi, vhd, and vmdk), so that you can take your virtual environments from your desktop to the cloud and back again as needed. These are referred to as virtual machine images, and are formatted differently across providers. Apart from any large-scale cloud optimizations, the only significant difference between virtualization environments is that the virtual machine hard disks and configuration options. In either case, they are technically similar, and make similar assumptions. Virtual machines may include an entire desktop interface, or they may only run an SSH server to allow terminal connections. You can also work with virtual machines locally on your desktop, using software like QEMU or VirtualBox. How to check the CPU whether support the VT-x/AMD-Vtechnology?And start it in BIOS?But another Virtual OS ( 32bit)also enable this technology,and works well.When you are working with a remote cloud server, you are usually working with a virtual machine: a sandboxed, isolated instance of an entire operating system that is running within a larger server cluster. So the VirtualBox won't detect the CPU of 64bit,and fail to start.Please confirm the support has been enabled. HINT: Enter your BIOS setup and enable Virtualization Technology (VT), and then hard poweroff/poweron your systemīut another problem happened,the VirtualBox displayed an error windows.: VT-x/AMD-V hardware-acceleration has been enabled,but it is in the ineffective status. Kvm-okagain: INFO: Your CPU supports KVM extensions
Sudo modprobe kvm_amdresult FATAL: Error inserting kvm_amd (/lib/modules/2.6.32-24-server/kernel/arch/x86/kvm/kvm-amd.ko): Operation not supported Kvm-okresult: INFO: Your CPU supports KVM extensions Is there any link between the architecture of host and that of the client virtual OS? The virtual machine tips me it only detected an i686 CPU. I wanna to install a virtual system with x86-64 in Virtual Box,But it seemed that it is impossible to do this. Virtual Marchine: VirtualBox 3.1.6_OSE r59338 linux.amd64 System information: Ubuntu SMP Thu Sep 16 16:05: x86_64 GNU/Linux
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