FAT32 Study Notes (5) -- fat related tools

1. Tools that format a block device as FAT32 include:

Mkfs. FAT32 (this tool is provided in Linux)

Newfs_msdos (this tool can be used on the Android platform)

 

Newfs_msdos-F 32/dev/block/ram0-s 8192-O Android-l zhiliao (-F 32 indicates formatting it to FAT32 format, /dev/block/ram0 is the device to be formatted,-s 8192 is the device size, 8192 represents 8192 sector, and each sector is 512 bytes, -O Android indicates the fatimg OEM name, and-l zhiliao indicates the name of the drive letter displayed on the PC)

 

2. newfs_msdos

 

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.

FAT32 Study Notes (5) -- fat related tools