Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Home NTDEV

Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging


The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.


Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/


Re: locking and unlocking a drive

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Try user-mode DefineDosDevice call.

----- Original Message -----
From: ANISH NAIR <[email protected]>
To: NT Developers Interest List <[email protected]>
Sent: Wednesday, May 24, 2000 4:40 PM
Subject: [ntdev] locking and unlocking a drive


> Hi all,
> I have a problem.
> How to lock and Dismount a volume in a drive which has no current
partitions
> i.e. without any drive letters?
>
> The scenario is:
> I have created a partition and formatted (FAT) the same with my own code.
> But the NT Explorer doesn't recognize the partition or assign drive letter
> to it until reboot, and Windisk shows the partition as Unknown.
> After rebooting everything works fine.
> This is because I couldn't Lock and Dismount the volume without the drive
> letter.
>
> Is there any way to make NT assign drive letter to a new partition without
> rebooting?
>
> Any Information regarding this would be highly appreciated.
>
>
> Warm Regards
> Anish
>
>
> ---
> You are currently subscribed to ntdev as: [email protected]
> To unsubscribe send a blank email to $subst('Email.Unsub')
>
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Kernel Debugging 30 January 2023 Live, Online
Developing Minifilters 20 March 2023 Live, Online
Writing WDF Drivers TBD 2023 Live, Online
Internals & Software Drivers 17 April 2023 Live, Online