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POCreating a Virtual Disk Mount Point
 

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    <p>I have used the ImDisk library with the .NET wrapper to create a Virtual Disk in my C# application. However, after I create the device, I apparently need to create a Mount Point as well for the device to actually show as a Drive Letter. I don't completely understand what is supposed to be supplied for it to create a Mount Point, but I believe this pertains more to Virtual devices than the library.</p> <p>My Function:</p> <pre><code>public bool CreateRAMDisk() { // Create Empty RAM Disk char driveLetter = ImDiskAPI.FindFreeDriveLetter(); ImDiskAPI.CreateDevice(52428800, 0, 0, 0, 0, ImDiskFlags.DeviceTypeHD | ImDiskFlags.TypeVM, null, false, driveLetter.ToString(), ref deviceID, IntPtr.Zero); string mountPoint = driveLetter + @":\Device\ImDisk0"; ImDiskAPI.CreateMountPoint(mountPoint, deviceID); // Format the Drive for NTFS if (FormatDrive(driveLetter.ToString(), "NTFS", true, 4096, "", false)) { </code></pre> <p>CreateMountPoint Definition:</p> <pre><code> public static void CreateMountPoint(string Directory, uint DeviceNumber); // // Summary: // Creates a mount point for an ImDisk virtual disk on an empty subdirectory // on an NTFS volume. // // Parameters: // Directory: // Path to an empty subdirectory on an NTFS volume // // DeviceNumber: // Device number of an existing ImDisk virtual disk </code></pre> <p><em><strong>UPDATE</em></strong></p> <p>FormatDrive Function:</p> <pre><code>public static bool FormatDrive(string driveLetter, string fileSystem, bool quickFormat, int clusterSize, string label, bool enableCompression) { driveLetter = driveLetter + ":"; if (driveLetter.Length != 2 || driveLetter[1] != ':'|| !char.IsLetter(driveLetter[0])) { return false; } //query and format given drive ManagementObjectSearcher searcher = new ManagementObjectSearcher(@"select * from Win32_Volume WHERE DriveLetter = '" + driveLetter + "'"); foreach (ManagementObject vi in searcher.Get()) { vi.InvokeMethod( "Format", new object[] {fileSystem, quickFormat, clusterSize, label, enableCompression} ); } return true; } </code></pre>
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    1. COWhat exactly is FormatDrive doing? As it doesn't seem to have anything connecting it to the device that was created? Also I think if you need to use CreateMountPoint it should be called like so: `CreateMountPoint("C:\mount", deviceID);` where C:\mount is some empty directory you have on an existing filesystem.
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    2. COI updated my initial post with the FormatDrive() function. It is supposed to Format the drive after the device is created. Doesn't work at the moment since my device isn't being attached to a Drive Letter yet.
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    3. COHmm, that seemed to work for the Mount Point, but my device still doesn't seem to be attached to a letter in My Computer. Is there anything else normally associated with creating a Virtual Disk that I might be missing?
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