Virtualization concepts in OS
- 2. HYPERVISOR A hypervisor is a program that would enable you to host several different virtual machines on a single hardware. It allocates the resources to the virtual machines.
- 3. HOST AND GUEST OS A computer on which a hypervisor runs one or more virtual machines is called a host machine, and each virtual machine is called a guest machine.
- 4. Definition In computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, storage devices, and computer network resources.
- 5. FULL VIRTUALIZATION In this guest operating system is unaware that it is in a virtualized environment, and therefore hardware is virtualized by the host operating system so that the guest can issue commands to what it thinks is actual hardware, but really are just simulated hardware devices created by the host.
- 6. PARA VIRTUALIZATION Paravirtualization is virtualization in which the guest operating system (the one being virtualized) is aware that it is a guest and accordingly has drivers that, instead of issuing hardware commands, simply issue commands directly to the host operating system.
- 7. XEN HYPERVISOR Xen Project is a hypervisor using providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.
- 8. XEN INSTALLATION 1) dnf install xen virt-manager virt-viewer 2) vi /etc/grub.conf 3) virt-manager
- 9. ABOUT VMware VMware Workstation is a virtual machine software suite for x86 and x86-64 computers from VMware, which allows users to set up multiple x86 and x86-64 virtual machines (VMs) and use one or more of these virtual machines simultaneously with the hosting operating system.
- 10. INSTALLATION OF VMWARE 1) sudo dnf install kernel-headers 2) chmod +x ./VMware-Workstation12 3) /VMware-Workstation12