Booting from USB drive

I have a 4gb portable HD that I can access when booting from a DOS floppy.



I also have a 256mb pen drive that I made DOS-bootable.



If I boot from the USB pen drive, DOS doesn't see the 4gb USB portable
drive. It DOES see it if I

boot from the floppy.



Why doesn't DOS recognize the 4gb USB drive when booting from the USB pen
drive?



Thanks.

JohnB wrote:

> I have a 4gb portable HD that I can access when booting from a DOS floppy.
>
>
>
> I also have a 256mb pen drive that I made DOS-bootable.
>
>
>
> If I boot from the USB pen drive, DOS doesn't see the 4gb USB portable
> drive. It DOES see it if I
>
> boot from the floppy.
>
>
>
> Why doesn't DOS recognize the 4gb USB drive when booting from the USB pen
> drive?
>
>
>
> Thanks.

Dunno. As Windows XP does NOT contain DOS, why are you asking this in a
Windows XP newsgroup?

JohnB wrote:
> I have a 4gb portable HD that I can access when booting from a DOS
> floppy.
>
>
> I also have a 256mb pen drive that I made DOS-bootable.
>
>
>
> If I boot from the USB pen drive, DOS doesn't see the 4gb USB portable
> drive. It DOES see it if I
>
> boot from the floppy.
>
>
>
> Why doesn't DOS recognize the 4gb USB drive when booting from the USB
> pen drive?
>
>
>
> Thanks.

IFF you can boot from it, you would have to tell your system CMOS or BIOS
that it's a bootable device, just like you tell it CDs and floppies can be
booted from. IFF you can set that, you can. But I don't think you can;
check to be sure though.

Pop`

What drive letter are you using to access the usb drive? Perhaps drive
letter changes for it when you boot from a usb pen drive rather than the
floppy.

--


Harry Ohrn MS MVP [Shell\User]
www.webtree.ca/windowsxp


"JohnB" <jbrigan@yahoo.com> wrote in message
news:%23Lx3wqPgHHA.4032@TK2MSFTNGP02.phx.gbl...
>I have a 4gb portable HD that I can access when booting from a DOS floppy.
>
>
>
> I also have a 256mb pen drive that I made DOS-bootable.
>
>
>
> If I boot from the USB pen drive, DOS doesn't see the 4gb USB portable
> drive. It DOES see it if I
>
> boot from the floppy.
>
>
>
> Why doesn't DOS recognize the 4gb USB drive when booting from the USB pen
> drive?
>
>
>
> Thanks.
>
>

>Dunno. As Windows XP does NOT contain DOS, why are you asking this in a
>Windows XP newsgroup?


OH PALEASE!!! All winBlows run on Dos. What do you think is in
system32 folder? OSX? Now grant it, there is a lot more then Dos in
system32 folder now a days but it is the latest variant of that old
venerable OS that gates bought all those years ago...

"Big Rich Soprano" <BucSoprano@gmail.com> wrote in message
news80f235bda9enaif18eqntlq8qjb1bsnsl@4ax.com...
> >Dunno. As Windows XP does NOT contain DOS, why are you asking this in a
>>Windows XP newsgroup?
>
>
> OH PALEASE!!! All winBlows run on Dos. What do you think is in
> system32 folder? OSX? Now grant it, there is a lot more then Dos in
> system32 folder now a days but it is the latest variant of that old
> venerable OS that gates bought all those years ago...

Utter Nonsense.

--
Frank Saunders, MS-MVP OE/WM
http://www.fjsmjs.com

Big Rich Soprano wrote:

>>Dunno. As Windows XP does NOT contain DOS, why are you asking this in a
>>Windows XP newsgroup?
>
>
> OH PALEASE!!! All winBlows run on Dos. What do you think is in
> system32 folder? OSX? Now grant it, there is a lot more then Dos in
> system32 folder now a days but it is the latest variant of that old
> venerable OS that gates bought all those years ago...

Sorry. Windows XP is an NT derivative and as such DOES NOT CONTAIN DOS. It
has a dos EMULATOR, but it is NOT DOS. Do some research first.