Guys HELP.

In the web I can't find answer to this problem.

I need to do something with this to finish my degree thesis.

I'm creating my own file system.

Entering the drive letter and it's number to get
direct access to the partition of the disk drive is
not good, I don't wan't to imagine what will
happen if the drive letter will not correspond to
it's number by user mistake ...

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Regards, Aram