: Many older file systems (like FAT16) and legacy software applications have a hard 2GB file size limit . Testing with a 2GB file ensures your application can handle the maximum capacity of these environments.
fallocate -l 2G sample_2gb.file
A 2GB sample file is a dummy file—usually filled with null characters, random data, or repeating patterns—that occupies exactly 2,147,483,648 bytes (binary gibibytes) or sometimes 2,000,000,000 bytes (decimal gigabytes), depending on the operating system’s definition. 2gb sample file