FAT32学习笔记（五）——fat相关工具

1,将一个块设备格式化为fat32的工具有

mkfs.fat32(linux自带该工具)

newfs_msdos(android平台上可以使用该工具) 

  newfs_msdos -F 32 /dev/block/ram0 -s 8192 -O android -L zhiliao（-F 32的含义是将其格式化为fat32格式，/dev/block/ram0是要被格式化的设备，-s 8192是设备的大小，8192表示的是8192个sector，每个sector大小为512Byte，-O android的含义是fatimg oem的名字，-L zhiliao的含义是盘符在PC端显示的名称）

2，newfs_msdos详细解释

option	description
-N	Don't create a file system: just print out parameters
-B   boot	Get bootstrap from file.
-F FAT-type	FAT type (one of 12, 16, or 32).
-I volid	Volume ID.
-L label	Volume label (up to 11 characters).
-O OEM	OEM string (up to 8 characters). The default is "BSD 4.4".
-S sector-size	Number of bytes per sector.
-a FAT-size	Number of sectors per FAT.
-b block-size	File system block size (bytes per cluster).
-c cluster-size	Sectors per cluster.
-e dirents	Number of root directory entries (FAT12 and FAT16 only).
-f format	Specify a standard (floppy disk) format

option	description
-h heads	Number of drive heads.
-i info	Location of the file system info sector (FAT32 only).
-k backup	Location of the backup boot sector (FAT32 only).
-m media	Media descriptor (acceptable range 0xf0 to 0xff).
-n FATs	Number of FATs. Acceptable values are 1 to 16 inclusive
-o hidden	Number of hidden sectors.
-r reserved	Number of reserved sectors.
-s total	File system size.
-u track-size	Number of sectors per track.