直接将磁盘格式化为ext3格式

用法与mke2fs相似
Usage: mkfs.ext3 [-c|-t|-l filename] [-b block-size] [-f fragment-size]
[-i bytes-per-inode] [-j] [-J journal-options] [-N number-of-inodes]
[-m reserved-blocks-percentage] [-o creator-os] [-g blocks-per-group]
[-L volume-label] [-M last-mounted-directory] [-O feature[,...]]
[-r fs-revision] [-R options] [-qvSV] device [blocks-count]