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Information processing device and method for controlling information processing device

A technology of an information processing device and a control method, applied in the direction of a program control device, an electrical digital data processing, a computer security device, etc., can solve the problems such as the inability to load, the inability to check the status of the OS startup information, and the inability to notice the tampering situation.

Inactive Publication Date: 2013-12-04
FUJITSU CLIENT COMPUTING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the user cannot check the state of the OS startup information, and therefore cannot notice tampering
Also, if the information necessary for startup is deleted, UEFI cannot load the boot management program, and the OS cannot be loaded.

Method used

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  • Information processing device and method for controlling information processing device
  • Information processing device and method for controlling information processing device
  • Information processing device and method for controlling information processing device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] Hereinafter, the information processing device in this embodiment will be described.

[0023] figure 1 It is a block diagram briefly showing an example of the hardware configuration of the information processing device 10 in this embodiment. The information processing device 10 is overall controlled by a CPU (Central Processing Unit: central processing unit) 101 .

[0024] The system controller 103 is connected to the CPU 101 and the main storage device 102 . The system controller 103 controls data transfer between the CPU 101 and the main storage device 102 and data transfer between the CPU 101 and the bus 104 . Also, the system controller 103 is connected with a graphics controller 105, a ROM (Read Only Memory: read-only memory) 106, a network controller 107, an audio controller 108, a power supply 109, an optical drive 111, a keyboard controller 50, and a magnetic disk via a bus 104. controller 112 .

[0025] Main storage device 102 temporarily stores at least pa...

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PUM

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Abstract

To solve the problem of providing an information processing device that can start up a system in a normal manner, the information processing device comprises: a first storage unit for storing an OS program; a second storage unit having a storage area for storing a boot program, a first area for storing first path information that indicates the location of the OS program in the first storage unit, and a second area for storing second path information that indicates the location of the OS program previously used for startup, the second area being set so as to be accessible only by the boot program; and a processor. The processor writes to the second area the first path information used for starting up the OS program during a first startup; and during a second startup after the first startup, the processor uses the boot program to compare the first path information stored in the first area and the second path information stored in the second area, and determines whether to start up the OS program indicated by the first path information on the basis of the comparison results.

Description

technical field [0001] The present invention relates to an information processing device and a control method for the information processing device. Background technique [0002] In a conventional information processing device with a BIOS (Basic Input / Output System: Basic Input Output System) program, after the power of the information processing device is turned on, the CPU (Central Processing Unit: central processing unit) first executes the ROM on the ROM. (Read Only Memory: read-only memory) stored BIOS. The CPU performs device initialization and RAM (Random Access Memory: Random Access Memory) initialization through the BIOS. Thereafter, the CPU executes the BIOS, loads the BIOS program from the ROM to the memory (RAM), and performs processing for determining an auxiliary storage device necessary for OS activation, such as device initialization processing. Also, by executing the BIOS program, the CPU loads, onto the memory, a boot loader program written in an MBR (Mas...

Claims

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Application Information

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IPC IPC(8): G06F9/445
CPCG06F21/575G06F9/4401G06F9/4406G06F21/00G06F11/1417G06F11/1469G06F21/572G06F21/60
Inventor 木村辉彦
Owner FUJITSU CLIENT COMPUTING LTD
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