Examples and usage: KVM virt-manager: Install CentOS As Guest Operating System
This question isn’t very clear. I’ll try to give you an awnesr anyway.When booting from a CD, you are using your CD/DVD drive’s resources to run the OS. The more applications you open, the slower it will run because the resources will be shared.When you install Linux to your hard drive, whether physical or virtual, be sure to allocate plenty of swap space. I’d recommend at least 2 GB, if you intend to do any serious amount of use of the OS. At a minimum, your swap partition should be twice the size of your RAM.Swap is the buffer zone for your RAM. When you exceed your RAM, your computer will use it as though it were RAM, but you should be aware that swap (think of it as hard drive RAM) will rum slower than the RAM that you have installed. If you can upgrade your memory (RAM), your computer will run faster.experience with Linux in several of its distributions Fedora Core 5, Ubuntu, Kubuntu and PCLinuxOS.
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