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Editor to share with you how to build KVM open source virtual machine, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

KVM (full name is Kernel-based Virtual Machine) is a fully functional virtualization solution on x86 hardware platform under Linux, including a loadable kernel module kvm.ko provides and virtualizes core architecture and processor specification module.

Environment: Red Hat Enterprise Linux Server release 7.3

1. First, configure the yum source and check whether the current CPU supports KVM virtualization. Red Hat or CentOS [root @ localhost Desktop] # cat / proc/cpuinfo | egrep'(vmx | svm)'# if vmx is included in the output result, Intel virtualization technology is used; if svm is included, AMD virtualization technology is adopted; if there is no output, the current CPU does not support KVM virtualization technology. You can also check with grep-E'svm | vmx' / proc/cpuinfo and egrep-- color-I "svm | vmx" / proc/cpuinfo. View apt-get install cpu-checkerkvm-ok in Ubuntu system. The following results show that VTINFO: / dev/kvm existsKVM acceleration can be used is supported. The following results show that VTINFO: Your CPU does not support KVM extensionsKVM acceleration can NOT be used2. Install the virtualization package [root@localhost Desktop] # yum install-y qemu-kvm qemu-img#Ubuntu install [root@localhost Desktop] # lsmod with apt-get install-y virt-manager | grep kvm# verifies that the KVM module has successfully loaded kvm_intel 170181 0kvm 554609 1 kvm_intelirqbypass 13503 1 kvm# if the above results are output Indicates that the KVM module has loaded successfully. [root@localhost Desktop] # virsh-c qemu:///system list# verifies whether the libvirtd service starts normally Id Name State# will output the above result if it has been started successfully; if an error occurs, it means that the libvirtd service has not been started successfully. 3. Install virtual machine [root@localhost Desktop] # virt-manager# if the default storage is not available, then choose to create a custom storage

Configure the relevant parameters and prepare to install the system:

Construction of Virtualization Technology KVM Construction of Virtualization Technology KVM

Installing:

Construction of Virtualization Technology KVM Construction of Virtualization Technology KVM

Installation is complete, ready to restart:

Construction of Virtualization Technology KVM Construction of Virtualization Technology KVM

Installation successful!

The Construction of Virtualization Technology KVM the Construction of Virtualization Technology KVM View the virtual machine [root@localhost] # virsh list-- allId Name State--- rhel7.3 on the host Shut off [root@localhost ~] # virsh start rhel7.3Domain rhel7.3 started [root@localhost ~] # virsh list-allId Name State---6 rhel7.3 running [root@localhost ~] # virsh destroy rhel7.3Domain rhel7.3 destroyed [root@localhost ~] # virsh list-- allId Name State--- rhel7.3 shut off above is "such as" All the contents of the article "how to build the KVM open source virtual machine" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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