finstext2.h

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#pragma once
 
#define PACKED            __attribute__((packed))
 
typedef struct
{
    unsigned char    JmpBoot[3];
    unsigned char    BootDrive;
    //unsigned char    BootPartition;
    //unsigned char    SectorsPerTrack;
    //unsigned short    NumberOfHeads;
    //unsigned long    Reserved1;
    //unsigned long    Reserved2;
 
    unsigned long    Ext2VolumeStartSector;    // Start sector of the ext2 volume
    unsigned long    Ext2BlockSize;            // Block size in sectors
    unsigned long    Ext2BlockSizeInBytes;    // Block size in bytes
    unsigned long    Ext2PointersPerBlock;    // Number of block pointers that can be contained in one block
    unsigned long    Ext2GroupDescPerBlock;    // Number of group descriptors per block
    unsigned long    Ext2FirstDataBlock;        // First data block (1 for 1024-byte blocks, 0 for bigger sizes)
    unsigned long    Ext2InodesPerGroup;        // Number of inodes per group
    unsigned long    Ext2InodesPerBlock;        // Number of inodes per block
 
    unsigned char    BootCodeAndData[459];
 
    unsigned char    BootPartition;
    unsigned short    BootSignature;
 
} PACKED EXT2_BOOTCODE, *PEXT2_BOOTCODE;