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Questions tagged [fat32]

FAT32 is a filesystem format that is used on flash drives and older systems. It is the only filesystem that is fully supported by all three major operating systems (Windows, Mac OS X, and Linux).

FAT32 (File Allocation Table or File Allocation Table) is a that organizes and manages access to files on hard drives and other media. Created in 1996 by Microsoft to replace the FAT16 used by MS-DOS and with a number of limitations. FAT32 was implemented on Windows 95 (OSR2), Windows 98 and Millennium, and still has compatibility with Windows 2000 and Windows XP, using a more modern file system, NTFS, which was continued, and is also used in systems Windows Vista, Windows 7 and Windows Server 2008 R1/R2 (enterprise server).

The file allocation table (FAT) is a data structure that Windows creates after formatting a physical unit. This table stores information about the location of each file within the physical drive so they can be saved, retrieved, modified or deleted later. They are stored in blocks arranged in different positions of the disk, justifying the need for a table that point to each of these blocks.

Summary

For any type of data access to media, you need a file system to take these actions. Without a structure for storing data such as FAT32, no procedure for disk access is possible.

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Create bootable disk with large FAT32 partition from C#

I'm trying to create a bootable disk, e.g. a virtual disk or SD card, with the FAT32 file system from a C# code. It fails on two reasons: Formatting FAT32 partition with the standard windows tools format.exe or diskpart.exe as well with the…
igor.br
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Formatting an eMMC to SD format

I've been working with a Micron BGA eMMC chip and prototyping a communication scheme with the eMMC chip inside an adapter board that connects to the GPIO pins of a TI microcontroller. I've essentially created a communication scheme written in C code…
Tyler Mckean
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Pen Drive is not able play audio in audio player after formated as FAT32

Firstly I made my pendrive as bootable and after finished the stuff i formatted it as FAT32 and feed the songs into it , then i plugged into mp3 player in car to play the songs but mp3 player can't able to play the songs even though ports are fine…
Rakesh S R
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rsync - same size, content, owner, group, permissions, time - yet it wants to copy

rsync - same size, content, owner, group, permissions, time - yet it wants to copy Using macOS Mojave. Using the default filesystem in the source dir (apfs per df?), FAT32 in the dest dir (msdos per df). Run out of ideas.
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Can't format a usb volume using fdisk

I tried to format a usb flash disk to FAT32 using fdisk /dev/sdb(I created a new partition and saved changes with w) and mkfs.vfat -F 32 /dev/sdb but when i eject and mount the volume again,it looks like it's empty. dmesg | tail outputs: […
Lucian Dan
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WINDOWS FAT32 limitaion

I have goggled and is at a conclusion that windows 7 cannot format a drive >32GB with FAT32..I searched a lot but got results stating this limitation but none explained me the reason for this.I also came to know that linux can format it with a…
Omkar
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Is it possible to make a FAT32 partition where the start of the cluster data will align with the cluster size?

What I'm getting at is that I've tried to make a bunch of fat32 partitions of various sizes so that the reserved space plus the 2 copies of the fat table would land me at a byte position that was evenly divisible by the cluster size. I've tried…
stu
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How to get fat16 or fat32 or ntfs filesystem on Linux

I tried this code: try { Process p = Runtime.getRuntime().exec("df -T"); BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream())); String line = null; while ((line = in.readLine()) !=…
kodaek99
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How to parse raw "disk" data?

The output below belongs to a FAT32 disk file. I want to display all files and corresponding allocated sectors for each file, with a C program. I'm unable to even find the root directory by following the guide. (Example 1 - find the root directory…
mmswe
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Embedded - SD card - SPI - C -Codevision AVR - Creating and writing a file in an SD card

I have an SD card (or SDHC card) connected to a microcontroller via SPI mode. I am using Chan’s FAT library. In this I used CodevisionAVR v2.05.3 example code from help. By using this I read a text document and opened the file using open…
sasi
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Creating large files is slow on fat32 storages

I need to allocate files of (large) given size on Android devices. Doing as following takes no time on most devices. RandomAccessFile fileStream = new RandomAccessFile("test.txt", "rw"); fileStream.seek(FILE_SIZE - 1); …
lou
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Fat32 browsing tool

Are there any open source libraries / tools that allow me to do browse and FAT32 formatted image file? I want to extract some files from the image. (Edit: Sorry, i forgot to say i want to do this on Windows 7)
ctasdemir
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Is formatting a USB stick to NTFS a good idea?

I have a Sandisk dual drive USB stick which can be plugged into android and PC. I was wondering if I should format it to NTFS before using. I intend to use it for storing my important files from android, which are quite large. I often find my USB…
Jack Stevens
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Hard disk not detected after formating to DOS_FAT_32

I have a WD Elements external hard disk. Earlier it was using NTFS file system, which I have formatted to DOS_FAT_32. Now I can't see the hard disk in finder or disk utility. But when I execute the command diskutil list, the the external HD is…
jay
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looking for fat32 source

I am looking for open source code for implementing fat32 in C or C++.I thought It would be easy to find several online but it appears to be evading me. I don't have a problem with GPL or any other open source license.
lonelycanyon
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