为了解决当前BIOS(basic input output system,基本输入输出系统)Flash更新存在的种种弊端,提出了一种在UEFI(uni-fied extensible firmware interface,统一的可扩展固件接口)中实现Flash更新的方法。根据BIOS FLASH更新的特点,对其当前存在的问题进行分析,并基于UEFI2.3的规范说明文档,介绍了UEFI提供的技术支持手段。在此基础上,给出了在UEFI下Flash更新的具体方法,从而为提高Flash更新的统一性、有效性等问题提供了可行的解决途径。
To avoid various disadvantages of current BIOS(basic input output system) flash update,a method of flash update based on UEFI technology is proposed.The characteristics of popular BIOS flash update methods are analyzed and the existing problems are listed.After a brief review of UEFI technology,UEFI techniques supporting BIOS flashing method are introduced.Finally,a practical and secure flash utility is developed,which simplified the realization of flash update in various OS and in supporting different hardware platforms.