root / lab4 / .minix-src / include / i386 / partition.h @ 13
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/* Description of entry in partition table. */
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#ifndef _PARTITION_H
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#define _PARTITION_H
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#include <stdint.h> |
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struct part_entry {
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uint8_t bootind; /* boot indicator 0/ACTIVE_FLAG */
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uint8_t start_head; /* head value for first sector */
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uint8_t start_sec; /* sector value + cyl bits for first sector */
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uint8_t start_cyl; /* track value for first sector */
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uint8_t sysind; /* system indicator */
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uint8_t last_head; /* head value for last sector */
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uint8_t last_sec; /* sector value + cyl bits for last sector */
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uint8_t last_cyl; /* track value for last sector */
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uint32_t lowsec; /* logical first sector */
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uint32_t size; /* size of partition in sectors */
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}; |
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#define ACTIVE_FLAG 0x80 /* value for active in bootind field (hd0) */ |
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#define NR_PARTITIONS 4 /* number of entries in partition table */ |
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#define PART_TABLE_OFF 0x1BE /* offset of partition table in boot sector */ |
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/* Partition types. */
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#define NO_PART 0x00 /* unused entry */ |
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#define MINIX_PART 0x81 /* Minix partition type */ |
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#endif /* _PARTITION_H */ |