Hello,
 -  I tried, as suggested:
/usr/local/kvm/bin/qemu-system-x86_64 -usb -usbdevice disk:/dev/sdb
/work/kvm/win2003/vdisk.img -m 384

it on x86_64 machine and it crashed the fedora core and rebooted the machine.


I tried it in fact twice: once when the USB disk on key was not
mounted, and once when
it was mounted (though I doubt if it has any importance in this case).

I wonder: could anybody access a USB disk on key from windows under
Linux (via KVM)?
can he share his experience and tell us exactly what he did ?

Regards,
Ian




On 7/18/07, Anthony Liguori <[EMAIL PROTECTED]> wrote:
> Ian Brown wrote:
> > Hello,
> >
> > Thanks, Anthony.
> >
> > I tried both #2 and #3.
> >
> > It does not say any error, but still I cannot access the USB disk on key.
> > Maybe I miss something ?
> > Here are few more details.
> >
> > When I ran:
> > /usr/local/kvm/bin/qemu-system-x86_64 -usbdevice disk:/dev/sdb
> > /work/kvm/win2003/vdisk.img -m 384
>
> Try:
>
> /usr/local/kvm/bin/qemu-system-x86_64 -usb -usbdevice disk:/dev/sdb
> /work/kvm/win2003/vdisk.img -m 384
>
> Regards,
>
> Anthony Liguori
>
> > OR
> > /usr/local/kvm/bin/qemu-system-x86_64  -hdb /dev/sdb
> > /work/kvm/win2003/vdisk.img -m 384
> >
> > windows started ok (it did not emit errors, as I said).
> >
> > But I expected that clicking on "my computer" (or right clicking and
> > opening file explorer) will show me the USB storage disk,
> > and it did not. (I can see there only the hard disk and the CD).
> >
> > Any ideas ?
> > Am I missing here something ?
> >
> > Regards,
> > Ian
> >
> >
> >
> >
> >
> >
> > On 7/16/07, Anthony Liguori <[EMAIL PROTECTED]> wrote:
> >> Avi Kivity wrote:
> >> > Ian Brown wrote:
> >> >
> >> >> Hello,
> >> >> Is there a way to access a USB disk-on-key from windows which runs on
> >> >> Linux under KVM?
> >> >>
> >> >>
> >> >>
> >> >
> >> > You can add it as a regular disk (-hdb /dev/sdb or whatever it's
> >> called;
> >> > make sure it isn't mounted in the host) or maybe via the -usbdevice
> >> > option (don't know if/how that works at all).
> >> >
> >>
> >> You have three options:
> >>
> >> 1) Expose it as -hdb /dev/sdb
> >> 2) Expose it as an emulated USB disk -usbdevice disk:/dev/sdb
> >> 3) Pass it through directly to the guest by disabling Linux from using
> >> the device and then passing it through with -usbdevice host:x.y
> >>
> >> #1 will perform the best
> >> #2 will give you the give you the most flexibility (you can remove the
> >> disk and insert at run time)
> >> #3 would allow you to support exotic disks that go beyond the standard
> >> mass storage specification.
> >>
> >> I'd recommend using #2.
> >>
> >> Regards,
> >>
> >> Anthony Liguori
> >>
> >>
> >
>
>

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