fd(4) Device Drivers Manual fd(4) fd - -- 2. root.floppy (.. root, floppy), -- 0660 ( ) 0666 ( ). , , . , , . 128, . n . Warning: if you use formats with more tracks than supported by your drive, you may cause it mechanical damage. Trying once if more tracks than the usual 40/80 are supported should not damage it, but no warranty is given for that. If you are not sure, don't create device entries for those formats, so as to prevent their usage. , , : -------------------------------------- fdn 0 5.25 : . . -------------------------------------------------------------------------------------------------------------------- fdnd360 360 40 9 2 4 5.25 : . . -------------------------------------------------------------------------------------------------------------------- fdnh360 360 40 9 2 20 fdnh410 410 41 10 2 48 fdnh420 420 42 10 2 64 fdnh720 720 80 9 2 24 fdnh880 880 80 11 2 80 fdnh1200 1200 80 15 2 8 fdnh1440 1440 80 18 2 40 fdnh1476 1476 82 18 2 56 fdnh1494 1494 83 18 2 72 fdnh1600 1600 80 20 2 92 3.5 : . . -------------------------------------------------------------------------------------------------------------------- fdnu360 360 80 9 1 12 fdnu720 720 80 9 2 16 fdnu800 800 80 10 2 120 fdnu1040 1040 80 13 2 84 fdnu1120 1120 80 14 2 88 3.5 : . . -------------------------------------------------------------------------------------------------------------------- fdnu360 360 40 9 2 12 fdnu720 720 80 9 2 16 fdnu820 820 82 10 2 52 fdnu830 830 83 10 2 68 fdnu1440 1440 80 18 2 28 fdnu1600 1600 80 20 2 124 fdnu1680 1680 80 21 2 44 fdnu1722 1722 82 21 2 60 fdnu1743 1743 83 21 2 76 fdnu1760 1760 80 22 2 96 fdnu1840 1840 80 23 2 116 fdnu1920 1920 80 24 2 100 3.5 : . . -------------------------------------------------------------------------------------------------------------------- fdnu2880 2880 80 36 2 32 fdnCompaQ 2880 80 36 2 36 fdnu3200 3200 80 40 2 104 fdnu3520 3520 80 44 2 108 fdnu3840 3840 80 48 2 112 fd (raw mode). fd ioctl(2): FDCLRPRM ( ). FDSETPRM . , . FDDEFPRM ( ). , . . , FDCLRPRM. FDGETDRVTYP ( ). , , FDGETDRVTYP , , . FDFLUSH . FDSETMAXERRS , , , . FDSETMAXERRS . FDGETDRVTYP . FDWERRORCLR . FDWERRORGET . , , , , . , () . FDTWADDLE . , . FDSETDRVPRM . FDGETDRVPRM . FDGETDRVSTAT ( , . .) FDPOLLDRVSTAT . FDGETFDCSTAT . FDRESET . FDRAWCMD (raw command) . , floppycontrol(1). /dev/fd* . , , , . , (interleaved) . , GCR ( ), Apple II Macintosh ( 800k). ( ) . 8- . chown(1), floppycontrol(1), getfdprm(1), mknod(1), superformat(1), mount(8), setfdprm(8) () Azamat Hackimov , Dmitry Bolkhovskikh , Yuri Kozlov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () . Linux man-pages 6.18 8 2026 . fd(4)