The following command 'sudo mkfs.fat -a /dev/fd0 1440' now seems to work despite the error message that the "partition" is not found. left open.Īn odd thing after shutting down for the day and coming back to this. The write protection tab on the diskette was not engaged i.e. Happy New Year ! and thanks! to all who replied. If memory serves me correctly, there will be a hole at the bottom LEFT (when viewing the back of the disk), for disks with 1.44 MB capacity, and if no hole exists on bottom LEFT, then the floppy is 720 KB. If you hold the floppy so you are looking at the back, then there will be a hole on the bottom LEFT that is used to tell the drive what the floppy disk's capacity is. Please note that the 3.5 inch floppies came in various capacities (the two most common were 720 KB and 1.44 MB. and you will be able to write to the floppy. If that's the case, then just put a small piece of opaque tape over the "hole" (where the slider switch was). Sometimes the little "slider switch" on 3.5" floppies were removed (to make the floppy permanently read-only). If the movable part of the tab is down, the disk is write-enabled. If the movable part of the sliding tab is up, so that there's a hole in that corner of the disk, the disk is write-protected.
If you hold the disk so that the edge that goes into the drive is at the bottom, this should be in the top left corner. On one corner, there should be a sliding tab. To tell if a floppy disk is write-protected (locked), look at the underside of the disk (the part that's on the bottom when you put the disk in the drive).
I assume you know this, but to make sure. I assume you are talking about the 3.5" floppies. Are you talking about 5.25" and 8" floppy discs or 3.5" floppies?
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