Partition_Record

This type is used internally by LVM, and is not directly available through the public LVM API. However, it is possible to access this data by means of the Read_Sectors and Write_Sectors functions.

#include <lvm_data.h>

#define ACTIVE_PARTITION       0x80
#define EBR_BOOT_INDICATOR     0x0


typedef struct _Partition_Record {
    Byte       Boot_Indicator;    /* Active partition indicator                                           */
    Byte       Starting_Head;     /* Starting head of this partition                                      */
    Byte       Starting_Sector;   /* Starting sector (bits 0-5) and cylinder (bits 6-7) of this partition */
    Byte       Starting_Cylinder; /* Starting cylinder (combined with bits 6-7 of the previous field)     */
    Byte       Format_Indicator;  /* Indicates the filesystem/OS type of this partition                   */
    Byte       Ending_Head;       /* Ending head of this partition                                        */
    Byte       Ending_Sector;     /* Ending sector (bits 0-5) and cylinder (bits 6-7) of this partition   */
    Byte       Ending_Cylinder;   /* Ending cylinder (combined with bits 6-7 of the previous field)       */
    DoubleWord Sector_Offset;     /* The number of sectors on the disk prior to this partition            */
    DoubleWord Sector_Count;      /* The number of sectors in this partition                              */
} Partition_Record;