1- unmount the floppy if its mounted by
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umount /dev/fd0
umount /dev/fd0u1722
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2- format it to be 1722KB by low level format
fdformat /dev/fd0u1722
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3- put a file system on it
mkdosfs /dev/fd0u1722
or
mke2fs /dev/fd0u1722
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sure mkdosfs will make it visible for dos and windows
so dos and windows can use it
