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FD

Section: Special files (4)
Updated: January 29, 1995
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fd - ¥Õ¥í¥Ã¥Ô¡¼¥Ç¥£¥¹¥¯(floppy disk)¥Ç¥Ð¥¤¥¹  

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¥Õ¥í¥Ã¥Ô¡¼¥É¥é¥¤¥Ö¤Ï¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¡¼ 2 ¤ò»ý¤Ä¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹¤Ç¤¢¤ë¡£ °ìÈÌŪ¤Ë¤Ï¡¢¤³¤Î¥Ç¥Ð¥¤¥¹¤Î¥ª¡¼¥Ê¡¼¤Ï root.floppy (¤¹¤Ê¤ï¤Á¡¢¥ª¡¼¥Ê¡¼ root ¤Ç ¥°¥ë¡¼¥× floppy )¤Ç¡¢¥â¡¼¥É 0660 (¥°¥ë¡¼¥×¤Î¹½À®°÷¤Ç¤¢¤ë¤³¤È¤Ë ¤è¤Ã¤Æ¥¢¥¯¥»¥¹¥Á¥§¥Ã¥¯¤¬¹Ô¤ï¤ì¤ë)¡¢¤Þ¤¿¤Ï¡¢¥â¡¼¥É 0666 (ï¤Ç¤â¥¢¥¯¥»¥¹ ¤Ç¤­¤ë)¤Ç¤¢¤ë¡£¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼¤Ï¥Ç¥Ð¥¤¥¹¤Î¥¿¥¤¥×¡¢¥É¥é¥¤¥Ö¤ÎÈֹ桢¥³ ¥ó¥È¥í¡¼¥é¡¼¤ÎÈÖ¹æ¤òÉ乿²½¤·¤¿¤â¤Î¤Ç¤¢¤ë¡£¤½¤ì¤¾¤ì¤Î¥Ç¥Ð¥¤¥¹¥¿¥¤¥×(¤³ ¤ì¤Ï¡¢Ì©ÅÙ(density) ¤È¥È¥é¥Ã¥¯¥«¥¦¥ó¥È(track count) ¤ÎÁȹ礻¤Ç¤¢¤ë)¤Ï¡¢ ¥Ù¡¼¥¹¤È¤Ê¤ë¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼¤ò»ý¤Ã¤Æ¤¤¤ë¡£¤³¤Î¥Ù¡¼¥¹¥Ê¥ó¥Ð¡¼¤Ë¤½¤Î¥³¥ó ¥È¥í¡¼¥é¡¼¾å¤Î¥É¥é¥¤¥Ö¥Ê¥ó¥Ð¡¼¤ò²Ã¤¨¤ë¡£¤â¤·¡¢¤½¤Î¥É¥é¥¤¥Ö¤¬ 2 ÈÖÌܤΠ¥³¥ó¥È¥í¡¼¥é¡¼¤ËÀܳ¤µ¤ì¤Æ¤¤¤ë¤Ê¤é¡¢¤µ¤é¤Ë 128 ¤ò²Ã¤¨¤ë¡£¼¡¤Î¥Ç¥Ð¥¤¥¹ ¥Æ¡¼¥Ö¥ë¤Ç¤Ï¡¢ n ¤Ï¥É¥é¥¤¥ÖÈÖ¹æ¤òɽ¤¹¡£

·Ù¹ð:¤â¤·¡¢¥É¥é¥¤¥Ö¤Ç¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤è¤ê¿¤¯¤Î¥È¥é¥Ã¥¯¤ò»ý¤Ä¤è¤¦¤Ë ¥Õ¥©¡¼¥Þ¥Ã¥È¤·¤è¤¦¤È¤·¤¿¾ì¹ç¡¢µ¡³£Åª¤Ê¥À¥á¡¼¥¸¤ò°ú¤­µ¯¤³¤¹¤«¤âÃΤì¤Ê¤¤¡£

ËÝÌõ¼ÔÃí: °Ê²¼¤Îɽ¤ËÍѤ¤¤é¤ì¤ëÍѸì¤Ïɽ¤ÎÀ°·Á¤Î´Ø·¸(°ì¹Ô¤Ë¤¦¤Þ¤¯Ç¼¤á¤ë»ö¤¬¤Ç¤­¤Þ ¤»¤ó¤Ç¤·¤¿)¤«¤é¤½¤Î¤Þ¤Þ¤Ë¤·¤Æ¤¢¤ê¤Þ¤¹¡£ÆüËܸì¤È¤ÎÂбþ¤Ï°Ê²¼¤Î¤è¤¦¤Ë ¤Ê¤ê¤Þ¤¹¡£

Name̾Á°
Capac.ÍÆÎÌ
Cyl.¥·¥ê¥ó¥À¿ô
Sect.¥»¥¯¥¿¿ô
Heads.¥Ø¥Ã¥À¿ô
Base minor #¥Ù¡¼¥¹¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼

¥á¥Ç¥£¥¢¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤ÈÍÆÎ̤ò¼«Æ°Åª¤Ë¸¡½Ð¤¹¤ë¥É¥é¥¤¥ÖÈó°Í¸¤Î¥Ç¥Ð¥¤¥¹ ¥Õ¥¡¥¤¥ë:

NameBase minor #

fdn0

5.25 ¥¤¥ó¥ÁÇÜÌ©ÅÙ(double density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:

NameCapac.Cyl.Sect.HeadsBase minor #

fdnd360360K40924

5.25 ¥¤¥ó¥Á¹âÌ©ÅÙ(high density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:

NameCapac.Cyl.Sect.HeadsBase minor #

fdnh360360K409220
fdnh410410K4110248
fdnh420420K4210264
fdnh720720K809224
fdnh880880K8011280
fdnh12001200K801528
fdnh14401440K8018240
fdnh14761476K8218256
fdnh14941494K8318272
fdnh16001600K8020292

3.5 ¥¤¥ó¥ÁÇÜÌ©ÅÙ(double density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:

NameCapac.Cyl.Sect.HeadsBase minor #

fdnD360360K809112
fdnD720720K809216
fdnD800800K80102120
fdnD10401040K8013284
fdnD11201120K8014288

3.5 ¥¤¥ó¥Á¹âÌ©ÅÙ(high density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:

NameCapac.Cyl.Sect.HeadsBase minor #

fdnH360360K409212
fdnH720720K809216
fdnH820820K8210252
fdnH830830K8310268
fdnH14401440K8018228
fdnH16001600K80202124
fdnH16801680K8021244
fdnH17221722K8221260
fdnH17431743K8321276
fdnH17601760K8022296
fdnH18401840K80232116
fdnH19201920K80242100

3.5 ¥¤¥ó¥Á³Èĥ̩ÅÙ(extra density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:

NameCapac.Cyl.Sect.HeadsBase minor #

fdnE28802880K8036232
fdnCompaQ2880K8036236
fdnE32003200K80402104
fdnE35203520K80442108
fdnE38403840K80482112
 

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FDCLRPRM
¥É¥é¥¤¥Ö¤Î¥á¥Ç¥£¥¢¾ðÊó(¥É¥é¥¤¥ÖÆâ¤Î¥Ç¥£¥¹¥¯¤Î¥¸¥ª¥á¥È¥ê¾ðÊó)¤ò¥¯¥ê¥¢¤¹ ¤ë¡£
FDSETPRM
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FDDEFPRM
¥É¥é¥¤¥Ö¤Î¥á¥Ç¥£¥¢¾ðÊó(¥É¥é¥¤¥ÖÆâ¤Î¥Ç¥£¥¹¥¯¤Î¥¸¥ª¥á¥È¥ê¾ðÊó)¤ò¥»¥Ã¥È¤¹ ¤ë¡£¥á¥Ç¥£¥¢¾ðÊó¤Ï¥á¥Ç¥£¥¢¤¬¸ò´¹¤µ¤ì¤¿»þ¤Ç¤â¼º¤ï¤ì¤Ê¤¤¡£¤³¤ì¤Ï(¥á¥Ç¥£ ¥¢¾ðÊó¤Î)¼«Æ°¸¡½Ð¤ò̵¸ú¤Ë¤¹¤ë¡£¼«Æ°¸¡½Ð¤òºÆ¤ÓÍ­¸ú¤Ë¤¹¤ë¤¿¤á¤Ë¡¢ FDCLRPRM ¤òȯ¹Ô¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
FDGETDRVTYP
¥É¥é¥¤¥Ö¤Î¥¿¥¤¥×(̾Á°°ú¿ô)¤òÊÖ¤¹¡£¤½¤ì¤¾¤ì¤Î¥É¥é¥¤¥Ö¥¿¥¤¥×¤ËŬ¹ç¤¹¤ë¤è ¤¦¤Ë¥Õ¥©¡¼¥Þ¥Ã¥È¤ò¹Ô¤¦¤¿¤á¡¢FDGETDRVTYP ¤Ï¥Õ¥©¡¼¥Þ¥Ã¥È¤ò¥µ¥Ý¡¼¥È ¤¹¤ëºÇ¤â¸Å¤¤¥É¥é¥¤¥Ö¥¿¥¤¥×¤Î¤¿¤á¤ËŬÀÚ¤Ê̾Á°¤òÊÖ¤¹¡£
FDFLUSH
Í¿¤¨¤é¤ì¤¿¥É¥é¥¤¥Ö¤Î¥Ð¥Ã¥Õ¥¡¥­¥ã¥Ã¥·¥å¤ò̵¸ú¤Ë¤¹¤ë¡£
FDSETMAXERRS
¥¨¥é¡¼¤ÎÊó¹ð¡¢Áàºî¤ÎÃæ»ß¡¢ºÆ»î¹Ô¡¢¥ê¥»¥Ã¥È¡¢¥»¥¯¥¿¡¼Ëè¤ÎÆÉ¤ß¹þ¤ß¤Î¤¿¤á ¤Î¥¨¥é¡¼ïçÃͤò¥»¥Ã¥È¤¹¤ë¡£
FDGETMAXERRS
¸½ºß¤Î¥¨¥é¡¼ïçÃͤòÆÀ¤ë¡£
FDGETDRVTYP
¥É¥é¥¤¥Ö¤ÎÆâÉô̾¤òÆÀ¤ë¡£
FDWERRORCLR
½ñ¤­¹þ¤ß¥¨¥é¡¼¤ÎÅý·×¤ò¥¯¥ê¥¢¡¼¤¹¤ë¡£
FDWERRORGET
½ñ¤­¹þ¤ß¥¨¥é¡¼¤ÎÅý·×¤òÆÉ¤à¡£Åý·×¤Ï¡¢½ñ¤­¹þ¤ß¥¨¥é¡¼¤Î¹ç·×¡¢ºÇ½é¤Î½ñ¤­¹þ ¤ß¥¨¥é¡¼¤Ï¤É¤Î¥Ç¥£¥¹¥¯¤Î¤É¤³¤Çµ¯¤³¤Ã¤¿¤«¡¢¤½¤·¤Æ¡¢ºÇ¸å¤Î½ñ¤­¹þ¤ß¥¨¥é¡¼ ¤¬¤É¤Î¥Ç¥£¥¹¥¯¤Î¤É¤³¤Çµ¯¤³¤Ã¤¿¤«¤È¤¤¤¦¾ðÊó¤ò´Þ¤ó¤Ç¤¤¤ë¡£¥Ç¥£¥¹¥¯¤Ï¥Ç¥£ ¥¹¥¯¤Î¸ò´¹¤´¤È¤ËÁý¤¨¤ë¥¸¥§¥Í¥ì¡¼¥·¥ç¥óÈÖ¹æ¤Ë¤è¤Ã¤Æ¼±Ê̤µ¤ì¤ë¡£
FDTWADDLE
¿ô¥ß¥êÉäδ֥ɥ饤¥Ö¤Î¥â¡¼¥¿¡¼¤Î¥¹¥¤¥Ã¥Á¤òÀڤ롣¤³¤ì¤Ï¥Ç¥£¥¹¥¯¤Î¥»¥¯¥¿¡¼ Ʊ»Î¤¬Àܶᤷ¤¹¤®¤Æ¤¤¤ë¥Ç¥£¥¹¥¯¤Î¥¢¥¯¥»¥¹¤Î¤¿¤á¤ËɬÍפǤ¢¤í¤¦¡£
FDSETDRVPRM
¥É¥é¥¤¥Ö¤ÎÍÍ¡¹¤Ê¥Ñ¥é¥á¡¼¥¿¤ò¥»¥Ã¥È¤¹¤ë¡£
FDGETDRVPRM
(FDSETDRVPRM ¤ò»È¤Ã¤Æ¥»¥Ã¥È¤·¤¿)¥Ñ¥é¥á¡¼¥¿¤òÆÉ¤ß¤À¤¹¡£
FDGETDRVSTAT
¥­¥ã¥Ã¥·¥å¤µ¤ì¤Æ¤¤¤ë¥É¥é¥¤¥Ö¤Î¾õÂÖ(¥Ç¥£¥¹¥¯¤Î¸ò´¹¡¢¥é¥¤¥È¥×¥í¥Æ¥¯¥È¤Ê ¤É)¤òÆÀ¤ë¡£
FDPOLLDRVSTAT
¥É¥é¥¤¥Ö¤ò¥Ý¡¼¥ê¥ó¥°¤·¤Æ¡¢¤½¤Î¾õÂÖ¤òÊÖ¤¹¡£
FDGETFDCSTAT
¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¡¼¤Î¾õÂÖ¤òÆÀ¤ë¡£
FDRESET
¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¡¼¤ò¿®Íê¤Ç¤­¤ë¾õÂ֤˥ꥻ¥Ã¥È¤¹¤ë¡£
FDRAWCMD
¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¡¼¤ËÄã¥ì¥Ù¥ë¤Î¥³¥Þ¥ó¥É(raw command)¤òÁ÷¤ë¡£

¤è¤êÀµ³Î¤Ê¾ðÊó¤Î¤¿¤á¤Ë¤Ï¡¢¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¡¼¤Î¥Þ¥Ë¥å¥¢¥ë¤Ï¤â¤Á¤í ¤ó¡¢<linux/fd.h> ¤È <linux/fdarg.h> ¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë¤â»²¾È¤Î¤³¤È¡£  

Ãí°Õ

ÍÍ¡¹¤Ê¥Ç¥£¥¹¥¯¤Î¥¿¥¤¥×¤ÇÍÍ¡¹¤Ê¼ïÎà¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤ÎÆÉ¤ß½ñ¤­¤¬µö¤µ¤ì¤Æ¤¤ ¤ë¡£¤·¤«¤·¡¢¤â¤·¥»¥¯¥¿´Ö¤Î¥®¥ã¥Ã¥×¤¬¾®¤µ¤¹¤®¤ë¤è¤¦¤Ë¥Õ¥í¥Ã¥Ô¡¼¤¬¥Õ¥©¡¼ ¥Þ¥Ã¥È¤µ¤ì¤¿¤Ê¤é¤Ð¡¢¥È¥é¥Ã¥¯Á´ÂΤΥ¢¥¯¥»¥¹¤Ë¿ôÉÃɬÍפˤʤ뤿¤áÀ­Ç½¤¬Äã ²¼¤¹¤ë¤À¤í¤¦¡£¤³¤ì¤òËɤ°¤¿¤á¤Ë¤Ï¡¢¥¤¥ó¥¿¡¼¥ê¡¼¥Ö¥É¡¦¥Õ¥©¡¼¥Þ¥Ã¥È (interleaved format) ¤òÍѤ¤¤ë¡£  

¥Õ¥¡¥¤¥ë

/dev/fd*  

Ãø¼Ô

Alain Knaff (Alain.Knaff@imag.fr), David Niemi (niemidc@clark.net), Bill Broadhurst (bbroad@netcom.com).  

´ØÏ¢¹àÌÜ

floppycontrol(1), mknod(1), chown(1), getfdprm(1), superformat(1), mount(8), setfdprm(8)  

ËÝÌõ¼Ô

ÀÐÀî ËÓ <ishikawa@linux.or.jp>


 

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