How to truncate a file in FAT32 file system without zero padding in C?

I have 2TB HDD contains a single partition of FAT32 file system. While truncating a file to larger size say 100MB or 200MB using ftruncate(), it takes time of 5 to 10 seconds to do zero padding. Is there any way of file truncation that take a less time or do it without zero padding?

Copyright Notice：Content Author:「Parshv Shah」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/16299269/how-to-truncate-a-file-in-fat32-file-system-without-zero-padding-in-c

Products recommended by Amazon

More >>>

SanDisk 128GB microSDXC-Card, Licensed for Nintendo-Switch - SDSQXAO-128G-GNCZN

HUANUO Dual Monitor Stand - Adjustable Spring Monitor Desk Mount Swivel Vesa Bracket with C Clamp, Grommet Mounting Base for 13 to 27 Inch Computer Screens - Each Arm Holds 4.4 to 14.3lbs

AMD Ryzen 5 5600X 6-core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler

Timberland Men's 6-Inch Premium Waterproof Boot

More about “How to truncate a file in FAT32 file system without zero padding in C?” related questions

How to truncate a file in FAT32 file system without zero padding in C?

I have 2TB HDD contains a single partition of FAT32 file system. While truncating a file to larger size say 100MB or 200MB using ftruncate(), it takes time of 5 to 10 seconds to do zero padding. Is...

Show Detail

truncate() on FAT32

I noticed a big performance difference in the truncate() and ftruncate() function call when the file lives either on a ext3 filesystem or on a FAT32 filesystem. The file is about 50 MiB. To remove...

Show Detail

Traversing a fat32 file system

I have formatted a thumbdrive with Fat32 and placed a file in the root directory named sampleFile.txt and with the contents "oblique". I looked at the drive in Disk Investigator and I found in the

Show Detail

Custom file attribute in FAT32 and NTFS

I want the ability add custom property/tag to a file with any file extension. For example file.txt or file.pdf or file.jpg should all store and carry properties like 'custom tag'. The tag should be

Show Detail

Linux device without a file system

Today I just realized in my Ubuntu Linux, I can mount and store files on my newly purchased hard drive as a raw device without a file system. (as long as I partitioned the disk correctly) So, I am...

Show Detail

How do I truncate and completely rewrite a file without having leading zeros?

When truncating a file it seems to be adding additional zero bytes to the start: configFile, err := os.OpenFile("./version.json", os.O_RDWR, 0666) defer configFile.Close() check(err) //some actions

Show Detail

Add zero padding to string in c?

The concept is very similar to this Add zero-padding to a string but it's a question from c# NOT C. While you can add a zero padding in printf like this printf("%4d", number) How can I have a zero

Show Detail

Reading boot sector of a FAT32 file system

I am writing a program and I need to access some information in the boot sector about the FAT32 file system that I have mounted. Here is what I did, fully commented. int main (void) { unsigned

Show Detail

If I truncate a file to zero in Python 3 do I also need to seek to position zero?

According to the answers from this question calling truncate does not actually move the position of a file. So my question is, if I truncate a file to length zero after I read something from it (b...

Show Detail

Truncate CSV file in C#

I have a CSV file with 48 rows of integers. I am using the openfiledialog feature of visual c# to allow a user to select this file. I then want to have the program truncate that file down to 24 r...

Show Detail