If your images are 1440KiB images, then all that’s needed is to extract the raw sector image, and write it using cp or any other tool capable of writing to a block device (which even includes the shell). Thus, USB attached floppy drives cannot read XDF formatted media.USB floppy drives only support a limited set of disk formats: 720KiB (on DD floppies only), 1440KiB (“standard” HD), and in some cases, 1232KiB (“mode 3”, the format used on X68000 systems) and 1200KiB (so that 5.25” HD images can be written). Floppy disks formatted using XDF can only be read in floppy disk drives that are attached directly to the system by way of an FDC. Floppy distributions of OS/2 3.0, PC DOS 7 and onward used XDF formatting for most of the media set. However, the first cylinder uses standard formatting, providing a small FAT12 section that can be accessed without XDF support and on which can be put a ReadMe file or the XDF drivers. When formatted as XDF disks, 3½-inch floppies can hold 1860 kB, and 5¼-inch floppies can hold 1540 kB, using different number of sectors as well as different sector size per track (not all sectors in the same track are of the same size). It is supported natively by IBM's PC DOS versions and by OS/2 Warp 3 onward, using the XDF and XDFCOPY commands (directly in OS/2). The IBM e Xtended Density Format ( XDF) is a way of superformatting standard high-density 3½-inch and 5¼-inch floppy disks to larger-than-standard capacities. JSTOR ( December 2009) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: 'IBM Extended Density Format' – news

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What is an ibm formatted floppy disks