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FDSection: Special files (4)Updated: January 29, 1995 Index Return to Main Contents ̾Á°fd - ¥Õ¥í¥Ã¥Ô¡¼¥Ç¥£¥¹¥¯(floppy disk)¥Ç¥Ð¥¤¥¹ÀßÄê¥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¡£
¥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:
5.25 ¥¤¥ó¥ÁÇÜÌ©ÅÙ(double density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:
5.25 ¥¤¥ó¥Á¹âÌ©ÅÙ(high density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:
3.5 ¥¤¥ó¥ÁÇÜÌ©ÅÙ(double density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:
3.5 ¥¤¥ó¥Á¹âÌ©ÅÙ(high density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:
3.5 ¥¤¥ó¥Á³Èĥ̩ÅÙ(extra density)¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë:
ÀâÌÀfd ¥¹¥Ú¥·¥ã¥ë¥Õ¥¡¥¤¥ë¤Ï¥Õ¥í¥Ã¥Ô¡¼¥Ç¥£¥¹¥¯¥É¥é¥¤¥Ö¤Ë¥í¡¼¥â¡¼¥É (raw mode)¤Ç ¥¢¥¯¥»¥¹¤¹¤ë¡£fd ¤Ç¤Ï¡¢¼¡¤Î ioctl(2) ¥³¡¼¥ë¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤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°ÕÍÍ¡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¤áÀǽ¤¬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*Ãø¼ÔAlain Knaff (Alain.Knaff@imag.fr), David Niemi (niemidc@clark.net), Bill Broadhurst (bbroad@netcom.com).´ØÏ¢¹àÌÜfloppycontrol(1), mknod(1), chown(1), getfdprm(1), superformat(1), mount(8), setfdprm(8)ËÝÌõ¼ÔÀÐÀî ËÓ <ishikawa@linux.or.jp>
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