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¥Ñ¡¼¥Æ¥£¥·¥ç¥ó 1 ¡Á 4 ¤Ï DOS ¤Î "´ðËÜ(primary)"¥Ñ¡¼¥Æ¥£¥·¥ç¥ó
¥Ñ¡¼¥Æ¥£¥·¥ç¥ó 5 ¡Á 8 ¤Ï DOS ¤Î "³ÈÄ¥(extended)"(¤Þ¤¿¤Ï¡¢"ÏÀÍý (logical)")¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¡£

Î㤨¤Ð¡¢ /dev/sda ¤Ï¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¡¼ 8 ¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼ 0 ¤ò»ý¤Á¡¢¥·¥¹¥Æ¥à¤ÎºÇ½é¤Î SCSI ¥É¥é¥¤¥ÖÁ´ÂΤò»²¾È¤¹¤ë¡£¤½¤·¤Æ¡¢ /dev/sdb3 ¤Ï¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¡¼ 8 ¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼ 19 ¤ò»ý¤Á¡¢¥·¥¹¥Æ¥à¤ÎÆó¤ÄÌܤΠSCSI ¥É¥é¥¤¥Ö¤Î»°ÈÖÌܤΠDOS "´ðËÜ"¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ò»²¾È¤¹¤ë¡£ ¸½ºß¤Ï¡¢¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹¤À¤±¤¬Ä󶡤µ¤ì¤Æ¤¤¤ë¡£¥í¡¼¡¦¥Ç¥Ð¥¤¥¹(raw device) ¤Ï¤Þ¤À¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£  

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HDIO_GETGEO

¼¡¤Î¤è¤¦¤Ê¹½Â¤ÂΤòÍѤ¤¤ÆBIOS ¤Î¥Ç¥£¥¹¥¯¥Ñ¥é¥á¡¼¥¿¤òÊÖ¤¹:

struct hd_geometry {
      unsigned char heads;
      unsigned char sectors;
      unsigned short cylinders;
      unsigned long start;
};

¤³¤Î¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¤¬ ioctl(2) ¤Ø¤Î°ú¿ô¤È¤·¤ÆÅϤµ¤ì¤ë¡£ ¤³¤Î°ú¿ô¤ËÆþ¤ì¤é¤ì¤ÆÊÖ¤µ¤ì¤ë¾ðÊó¤Ï¡¢ DOS ¤Ë¤è¤Ã¤ÆÍý²ò¤µ¤ì¤ë¤è¤¦¤Ê ¥É¥é¥¤¥Ö¤Î¥¸¥ª¥á¥È¥ê¤Ç¤¢¤ë¡£ ¤³¤Î¥¸¥ª¥á¥È¥ê¤Ï¡¢¥É¥é¥¤¥Ö¤ÎʪÍýŪ¤Ê¥¸¥ª¥á¥È¥ê ¤Ç¤Ï¤Ê¤¤¡£ ¤³¤Î¾ðÊó¤Ï¥É¥é¥¤¥Ö¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¥Æ¡¼¥Ö¥ë¤òºîÀ®¤¹¤ë»þ¤ËÍѤ¤¤é¤ì¤ë¡¢¤Þ ¤¿¡¢ fdisk(1),efdisk(1), and lilo(1). ¤ÎŬÀÚ¤ÊÁàºî¤ËɬÍפǤ¢¤ë¡£ ¤â¤·¡¢¥¸¥ª¥á¥È¥ê¤Î¾ðÊó¤¬ÆÀ¤é¤ì¤Ê¤±¤ì¤Ð¡¢¤½¤ì¤¾¤ì¤ÎÃÍÁ´¤Æ¤Ë¥¼¥í¤¬Æþ¤ì ¤é¤ì¤ÆÊÖ¤µ¤ì¤ë¡£

BLKGETSIZE

¥»¥¯¥¿¤Î¿ô¤Çɽ¤·¤¿¥Ç¥Ð¥¤¥¹¤Î¥µ¥¤¥º¤¬ÊÖ¤µ¤ì¤ë¡£ ioctl(2) ¤Î°ú¿ô¤Ï¡¢ long ¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£

BLKRRPART

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scsi(4) ¤Î ioctl ¤âƱÍͤ˥µ¥Ý¡¼¥È¤µ¤ì¤ë¡£¤â¤·¡¢ ioctl(2) ¤Î¥Ñ¥é¥á¥¿¤¬Í׵ᤵ¤ì¡¢¤½¤ì¤¬ NULL ¤Ê¤é ioctl() ¤Ï -ENINVAL ¤òÊÖ¤¹¡£

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