Guest glr Posted January 1, 2009 Posted January 1, 2009 Trying to install Bitlocker on my Dell XPS M1530. It doesn't have TPM so I plan to store the Bitlocker Key on a USB device. Dell Support tells me my 8 in 1 memory card reader is a USB device. I mention that because I want to save the Bitlocker Key to an SD Card. Easy to pop in / out and easy to carry. Unfortunately, the Bitlocker setup only recognizes a USB thumb drive. Curiously, I can use an SD card as a ReadyBoost drive but not to store the Bitlocker key. Anyone try this or have any suggestions? Greg -- glr Posted via http://www.vistaheads.com Quote
Guest Alun Jones Posted January 3, 2009 Posted January 3, 2009 "glr" <glr.3lcj0c@no-mx.forums.vistaheads.com> wrote in message news:glr.3lcj0c@no-mx.forums.vistaheads.com...<span style="color:blue"> > Trying to install Bitlocker on my Dell XPS M1530. It doesn't have TPM so > I plan to store the Bitlocker Key on a USB device. Dell Support tells me > my 8 in 1 memory card reader is a USB device. I mention that because I > want to save the Bitlocker Key to an SD Card. Easy to pop in / out and > easy to carry. > > Unfortunately, the Bitlocker setup only recognizes a USB thumb drive. > Curiously, I can use an SD card as a ReadyBoost drive but not to store > the Bitlocker key.</span> The drive has to be recognised by the BIOS as a floppy drive. This is why you can use an external floppy drive or a USB stick, but not an external hard drive. It's also why you can't use an SD card (unless there's a BIOS out there that provides a floppy interface to an SD card). The Bitlocker code that pulls in the USB token is actually very low-level, and can't rely on any Windows drivers. It must rely on only access provided by the BIOS itself. Alun. ~~~~ Quote
Guest glr Posted January 6, 2009 Posted January 6, 2009 Dell Customer Support thought it should be achievable but directed me to the pay support line to help. My work around was to connect a $1 card reader to my USB hub. Thanks for your insights. "Alun Jones" wrote: <span style="color:blue"> > "glr" <glr.3lcj0c@no-mx.forums.vistaheads.com> wrote in message > news:glr.3lcj0c@no-mx.forums.vistaheads.com...<span style="color:green"> > > Trying to install Bitlocker on my Dell XPS M1530. It doesn't have TPM so > > I plan to store the Bitlocker Key on a USB device. Dell Support tells me > > my 8 in 1 memory card reader is a USB device. I mention that because I > > want to save the Bitlocker Key to an SD Card. Easy to pop in / out and > > easy to carry. > > > > Unfortunately, the Bitlocker setup only recognizes a USB thumb drive. > > Curiously, I can use an SD card as a ReadyBoost drive but not to store > > the Bitlocker key.</span> > > The drive has to be recognised by the BIOS as a floppy drive. This is why > you can use an external floppy drive or a USB stick, but not an external > hard drive. It's also why you can't use an SD card (unless there's a BIOS > out there that provides a floppy interface to an SD card). > > The Bitlocker code that pulls in the USB token is actually very low-level, > and can't rely on any Windows drivers. It must rely on only access provided > by the BIOS itself. > > Alun. > ~~~~ > </span> Quote
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