How can I use mtools with the ew floppy naming convention?
With the adoption of BSD 4.4, there is a new way of accessing the floppy disk drive types. The method uses the minor device number to specify different media sizes and densities. These densities are established by a table from the file /usr/src/sys/arch/i386/isa/fd.c in NetBSD (your mileage may vary). The table in FreeBSD’s fd.c is likely to be slightly different. The order of the entries defines the order of the minor numbers, so the table below has the following characteristics: /dev/fd0a 0 /* default disk type */ /dev/fd0b 1 /* 1.44MB diskette */ /dev/fd0c 2 /* 1.2 MB AT-diskettes */ /dev/fd0d 3 /* 360KB in 1.2MB drive */ /dev/fd0e 4 /* 360KB PC diskettes */ /dev/fd0f 5 /* 3.5″ 720KB diskette */ /dev/fd0g 6 /* 720KB in 1.2MB drive */ /dev/fd0h 7 /* 360KB in 720KB drive */ struct fd_type fd_types[] = { { 18,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,2,”1.44MB” }, { 15,2,0xff,0xdf,0x1b,0x54,80,2400,1,FDC_500KBPS,2,”1.2MB” }, { 9,2,0xff,0xdf,0x23,0x50,40, 720,2,FDC_300KBPS,2,”360KB/AT
