![]() ![]() A regular FAT12 driver can read a DMF-formatted floppy with a FAT12 filesystem on it provided the FAT12 driver isn't so daft as to presume there are 18 sectors per track on the floppy and instead reads the BPB, and so long as the floppy driver recognizes that there are 21 sectors per track on the floppy and adjusts its LBA-to-CHS calculations accordingly. When you start writing an OS you do the minimum possible to get the x86 processor in a usable state, then you try to get as far away from it as possible.ĭMF does not use a different filesystem. Anyone know if this is possible?I once tried to format a floppy as ext3, because firstly I wanted a modern filesystem on my floppy, secondly I wanted to make a bootable Linux disk and ext3 seemed like an obvious choice (I didn't know better at the time) and thirdly I wanted a journaling filesystem on the floppy in case I accidentally ejected the disk halfway through a filesystem operation (lol, I do that a lot even today - I used to forget to look at the drive LED before ejecting the disk, and now I forget to check if the drive noise has stopped before ejecting - I remember that the LED and the noise didn't always even tie up, and I think I used to have to wait a few seconds after the LED went off before ejecting the disk, otherwise the drive motor was still turning and I would damage the disk when I ejected it - the pressure placed on the disk when ejecting it while it's turning tends to scratch the disk inside). Never tried to format a floppy with FAT32, or EXT4.
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