IFS driver and drive letter assignment

Hello everybody,

I just modified the FastFat file system driver to extend FAT32 file
system to fit my own need. In my own driver, I define the system id in
partition table to 0x66, and jump[0] to 0xea to avoid confusing
FastFat drivers.

The driver can be successfully loaded and recognized the partition
that I modified from FAT32. The Disk Administrator also see that
volume in use and good status, but there is no drive letter assign to
that volume.

How can I get a drive letter assigned to that volume? Any help will be
appreciated!!

Thanks in advance,
James Hsiao

Nick
Fri Jul 04 02:16:30 CDT 2003

james.hsiao@yhi.com.tw (James Hsiao) wrote in
news:1ba2e202.0307031952.35608fa8@posting.google.com:

> Hello everybody,
>
> I just modified the FastFat file system driver to extend FAT32 file
> system to fit my own need. In my own driver, I define the system id in
> partition table to 0x66, and jump[0] to 0xea to avoid confusing
> FastFat drivers.
>
> The driver can be successfully loaded and recognized the partition
> that I modified from FAT32. The Disk Administrator also see that
> volume in use and good status, but there is no drive letter assign to
> that volume.
>
> How can I get a drive letter assigned to that volume? Any help will be
> appreciated!!
>
> Thanks in advance,
> James Hsiao
>

Which OS? What exactly happens when you manually attempt to assign a
drive letter in Disk Management?

--
- Nick Ryan (MVP for DDK)

james
Fri Jul 04 08:42:57 CDT 2003

Nick Ryan <nryan@nryan.com> wrote in message news:<Xns93AE2CA42C47nryannryancom@216.148.227.77>...
> james.hsiao@yhi.com.tw (James Hsiao) wrote in
> news:1ba2e202.0307031952.35608fa8@posting.google.com:
>
> >
>
> Which OS? What exactly happens when you manually attempt to assign a
> drive letter in Disk Management?

The operating system is Windows XP (target os is not SP1, but I build
the driver under XP SP1). When I right click the partition in Disk
Management. Only two items (Delete Partition and Help) can be
selected, other items are in grey text and can't be selected.

The Disk Management did not display file system type for the
partition.

Thank you for your patient!

Maxim
Fri Jul 04 10:43:34 CDT 2003

> The driver can be successfully loaded and recognized the partition
> that I modified from FAT32. The Disk Administrator also see that
> volume in use and good status, but there is no drive letter assign
to
> that volume.

MountMgr will not assign the drive letter to the volume with "strange"
partition type ID.

So, leave the partition type to be FAT. Since FASTFAT pays no
attention to it, the boot sector patch is enough to prevent FASTFAT
from mounting.

Max