android_build/target/board/generic_x86/disk_layout.conf

device {
    path /dev/block/sda

    scheme mbr

    # bytes in a disk sector (== 1 LBA), must be a power of 2!
    sector_size 512

    # What LBA should the partitions start at?
    start_lba 2048

    # Autodetect disk size if == 0
    num_lba 0

    partitions {
        sysloader {
            active y
            type linux
            len 7M
        }

        recovery {
            active y
            type linux
            len 16M
        }

        boot {
            active y
            type linux
            len 8M
        }

        cache {
            type linux
            len 512M
        }

        system {
            type linux
            len 512M
        }

        third_party {
            type linux
            len 512M
        }

        data {
            type linux
            len -1
        }
    }
}