Patent ID: 8813075
Filing Date: 2014-08-19
Classification: G06F

Abstract:
1. A virtual computer system comprising: a physical computer having a physical memory and a physical central processing unit (CPU); a plurality of logical partitions (LPARs) operating on the physical computer; an install unit connected to the physical computer, the install unit having an OS image which is an operating system (OS) to be installed in the LPARs, and an installer for installing the OS image; and a hypervisor configured to exercise control to cause the plurality of LPARs to operate on the physical computer, the hypervisor configured to generate a first LPAR and a second LPAR on a basis of LPAR setting information for managing the LPARs, to map a part of the physical memory to a memory area of the first LPAR, to load the installer into the first LPAR, to invoke the installer in the first LPAR to copy the OS image to the memory area of the first LPAR, to load the installer into the second LPAR; to map the physical memory area of the first LPAR having the OS image copied thereto to a part of a memory area of the second LPAR, in response to a read instruction received at the installer of the second LPAR for the OS, to read out the OS image from the mapped physical memory area of the first LPAR, and to install the OS in the second LPAR.