MBR

NTDEV
1

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Hi,

is possible by writing a kernel module driver, to gain access to MBR
(r/w). like eg. C-Dilla does.

Thank you for your time,
Bogdan

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2

IOCTL_DISK_GET_DRIVE_LAYOUT

----- Original Message -----
From: Bogdan Coroi
To: NT Developers Interest List
Sent: Sunday, July 22, 2001 8:04 PM
Subject: [ntdev] MBR

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Hi,

is possible by writing a kernel module driver, to gain access to MBR
(r/w). like eg. C-Dilla does.

Thank you for your time,
Bogdan

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3

Unless absolutely necessary that you need to write a driver, but for
accessing such an information you could use the
Win 32 DeviceIoControl call with the IoControlCode
IOCTL_DISK_GET_PARTITION_INFO_EX

This will return return you the MBR assuing that it a standard AT style
format.

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4

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Thank you both very much, for your help

Bogdan

  • ----- Original Message -----
    From:
    To: “NT Developers Interest List”
    Sent: Sunday, July 22, 2001 6:00 PM
    Subject: [ntdev] Re: MBR

    > Unless absolutely necessary that you need to write a driver, but
    > for accessing such an information you could use the
    > Win 32 DeviceIoControl call with the IoControlCode
    > IOCTL_DISK_GET_PARTITION_INFO_EX
    >
    > This will return return you the MBR assuing that it a standard AT
    > style format.
    >
    >
    > —
    > You are currently subscribed to ntdev as: xxxxx@cadsoft.ro
    > To unsubscribe send a blank email to
    > leave-ntdev-$subst(‘Recip.MemberIDChar’)@lists.osr.com

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5

On 07/22/01, ““Bogdan Coroi” ” wrote:

> Hi,
>
> is possible by writing a kernel module driver, to gain access to MBR
> (r/w). like eg. C-Dilla does.
>
> Thank you for your time,
> Bogdan

In addition to IOCTL_DISK_GET_PARTITION_INFO, since Bogdan specifically
asked about MBR, what’s wrong with:

CreateFile(“\\.\PHYSICALDRIVE0”,…)
ReadFile(…)
CloseHandle(…)

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6

On Monday, July 23, 2001 12:33 PM “xxxxx@troikanetworks.com” wrote:

In addition to IOCTL_DISK_GET_PARTITION_INFO, since Bogdan specifically
asked about MBR, what’s wrong with:

CreateFile(“\\.\PHYSICALDRIVE0”,…)
ReadFile(…)
CloseHandle(…)

Nothing much, just that \\.\PHYSICALDRIVE0 requires administrative
privileges if the (dwDesiredAccess) desired access flags is anything but
0;

A value of ZERO means that an application can query device attributes
without accessing the device.

>On 07/22/01, ““Bogdan Coroi” ” wrote:

>> Hi,
>>
>> is possible by writing a kernel module driver, to gain access to MBR
>> (r/w). like eg. C-Dilla does.
>>
>> Thank you for your time,
>> Bogdan

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