| 重叠式文件系统在嵌入式Linux 中的实现 |
| |
| 引用本文： | 曾繁景,虞云翔,常?? 力.重叠式文件系统在嵌入式Linux 中的实现[J].信息工程大学学报,2006,7(1):75-78. |
| |
| 作者姓名： | 曾繁景 虞云翔 常?? 力 |
| |
| 作者单位： | 1. 信息工程大学,信息工程学院,河南,郑州,450002
2. 61398部队,上海,200137 |
| |
| 摘 要： | 嵌入式Linux系统的广泛应用对文件系统提出了新的要求,如在为嵌入式产品升级系统软件时,需要对boot只读分区进行“写”操作。通过对VFS机制的深入分析,在VFS和底层具体文件系统之间叠加并实现了一个重叠(overlay)式文件系统,从而既保护了原有的系统文件,又实现了对系统软件的升级,满足了新的应用需求。
|
| 关 键 词： | 嵌入式Linux系统 VFS文件系统 overlay文件系统 wol技术 ndl技术 |
| 文章编号： | 1671-0673（2006）01-0075-04 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-12-20 |
The Implementation of Overlay File System in Embedded Linux |
| |
| ZENG Fan-jing,YU Yun-xiang,CHANG Li.The Implementation of Overlay File System in Embedded Linux[J].Journal of Information Engineering University,2006,7(1):75-78. |
| |
| Authors: | ZENG Fan-jing YU Yun-xiang CHANG Li |
| |
| Affiliation: | 1. Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China; 2. Unit 61398, Shanghai 200137, China |
| |
| Abstract: | With wide application of the embedded Linux system,further new requirements have been brought forward with the file systems.To name one,it is required to write in read-only boot partition while upgrading the system software for embedded production.Through profound analysis into the Virtual File System(VFS) mechanism,an overlay file system is stacked and implemented between the VFS and the concrete bottom file systems.This will not only protects the original file systems but also upgrades the system software.Thus the overlay file system meets with new application requirements. |
| |
| Keywords: | embedded Linux system VFS file system overlay file system whiteout list technology Non-duplicate-list technology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《信息工程大学学报》浏览原始摘要信息 |
|
点击此处可从《信息工程大学学报》下载全文 |
|
