partition.h

Minix3.11的源码。[MINIX 3是一个为高可靠性应用而设计的自由且简洁的类UNIX系统。]

/* Description of entry in partition table.  */
#ifndef _PARTITION_H
#define _PARTITION_H

struct part_entry {
  unsigned char bootind;	/* boot indicator 0/ACTIVE_FLAG	 */
  unsigned char start_head;	/* head value for first sector	 */
  unsigned char start_sec;	/* sector value + cyl bits for first sector */
  unsigned char start_cyl;	/* track value for first sector	 */
  unsigned char sysind;		/* system indicator		 */
  unsigned char last_head;	/* head value for last sector	 */
  unsigned char last_sec;	/* sector value + cyl bits for last sector */
  unsigned char last_cyl;	/* track value for last sector	 */
  unsigned long lowsec;		/* logical first sector		 */
  unsigned long size;		/* size of partition in sectors	 */
};

#define ACTIVE_FLAG	0x80	/* value for active in bootind field (hd0) */
#define NR_PARTITIONS	4	/* number of entries in partition table */
#define	PART_TABLE_OFF	0x1BE	/* offset of partition table in boot sector */

/* Partition types. */
#define NO_PART		0x00	/* unused entry */
#define MINIX_PART	0x81	/* Minix partition type */

#endif /* _PARTITION_H */