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This article mainly introduces "how to deal with errors in VirtualBox installation 64-bit system". In daily operation, I believe many people have doubts about how to deal with errors in VirtualBox installation 64-bit system. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to deal with errors in VirtualBox installation 64-bit system". Next, please follow the editor to study!

The current system is Fedora 64-bit (actually 32-bit is also OK). If you want to install 64-bit Ubuntu under VirtualBox, an error is reported:

The code is as follows:

This kernel requires an X86-64 CPU,but only detected an i686 CPU.

The downloaded kernel requires X86-64 bit CPU, but only i686 series CPU is detected.

But my computer is 64-bit, and the Ubuntu installed now is 64-bit, so how can it not work?

Originally, a 64-bit system installed by VirtualBox needs to meet the following conditions:

1.64-bit cpu

two。 The installed system must be 64-bit

3.cpu allows hardware virtualization

If the first two conditions are met, that is the question of the third condition.

Here is a supplementary note:

Hardware virtualization is actually the virtualization technology of CPU. The name of intel is VT-x,amd. His name is AMD-V. CPU, which supports virtual technology, has specially optimized instruction sets to control virtual processes. Through these instruction sets, VMM (Virtual Machine Monitor, virtual machine monitor) will easily improve performance, compared with the virtual implementation of software will greatly improve performance. Virtual technology can provide chip-based functions, and pure software solutions can be improved with compatible VMM software. Because the virtualized hardware can provide a new architecture and support the operating system to run directly on it, there is no need for binary conversion, which reduces the related performance overhead, greatly simplifies the VMM design, and enables VMM to be written according to common standards with more powerful performance.

How to determine whether hardware virtualization is supported?

1. Under window, a gadget securable.exe is used to help us test the hardware's support for virtualization technology. From the running results of our program, we can see that the physical machine supports 64-bit computing, hardware DEP and virtualization technology. This result shows that we can safely test XP MODE. If the result shown by "Hardware Virtualization" is "Locked OFF", it shows that CPU supports virtualization technology, but the motherboard BIOS forbids the support for virtualization. In this case, we need to change the BIOS setting or upgrade BIOS. If one of the three tests shows "NO", it means that your hardware does not meet the requirements for XP MODE deployment, so you don't have to continue testing.

two。 Under Linux, use the command: grep-E'(vmx | svm)'/ proc/cpuinfo. If you have vmx or svm content output, CPU supports virtualization technology.

Restart into BIOS, find an item of virtualization, most computers are in Advanced-cpu setup-virtualization in BIOS, now in Disabled state, change to Enable, restart to enter the system.

Re-examine and find that hardware virtualization is already supported.

But the installation still went wrong. Why?

Originally, when you built a new virtual computer, you had to install 64-bit ubuntu, but you didn't choose 64-bit. Just change the setting.

One more thing to note here: to turn on VirtualBox's vt-x/amd-v setting, this will actually turn on automatically.

Reinstall, and it's done!

At this point, the study on "how to deal with errors in the 64-bit system of VirtualBox installation" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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