文件名称：UBI&UBIFS 的使用注意和说明.pdf
文件大小：903KB
文件格式：PDF
更新时间：2023-06-16 03:40:29
UBI&UBIFS 的使用注意和 UBI UBIFS
⚫ UBI (Unsorted Block Images/无序块镜像) ➢ Runs on top of MTD（MTD(Memory Technology Device)是flash在Linux系统的一种 软件架构）; ➢ A sub system that provides consecutive logical eraseblocks （逻辑块）which are mapped to physical eraseblocks（物理块）; ➢ Volume management system which manages multiple logical volumes （逻辑卷） on a single raw flash device; ➢ UBI implements global wear-leveling and transparent I/O handling; ➢ Mainlined since kernel version 2.6.22. ⚫ UBIFS ➢ A file system for raw flash which works on top of UBI over MTD; ➢ Considered as the next generation of JFFS2; ➢ Mainlined since kernel version 2.6.27, 17 July 2008.