usb (flash) drive boot - microsoft.public.windowsxp.embedded

Message from discussion usb (flash) drive boot

Slobodan Brcin

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More options Dec 18 2003, 12:27 pm

Newsgroups: microsoft.public.windowsxp.embedded

From: "Slobodan Brcin" <sbr...@ptt.yu>

Date: Thu, 18 Dec 2003 18:25:27 +0100

Local: Thurs, Dec 18 2003 12:25 pm

Subject: Re: usb (flash) drive boot

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I will write it, eventually.

But for now:
You should use USB disk marked as non-removable.

Also you must prepare disk (fdisk or diskedit, format) to make disk
bootable.
You must somehow reach phase that XPe is loading.

When you hit BSOD 7B.

Then you need to mark usbehci, usbohci, usbhub, usbstor.
To load at phase 0.
Also you need to set LoadGroup to Boot Bus Extender so USB is loaded before
filesystem load is attempted.

Failing to do this properly will fail with result 7B.

When you hit BSOD you can use kernel debugger to see what part of USB stack
is loaded.

Use: !devnode 0 1
it will list all drivers and their relations.

You need to see something like:
(usbohci or usbehci)-usbhub-usbstor or you will see what is missing.

Also all entries must be declared as critical drivers.

BTW:
FBA can be executed directly on USB disk.

Regards,
Slobodan

"Mark K Vallevand" <mark DOT vallevand AT unisys DOT com> wrote in message
news:#pMB2XYxDHA.2136@TK2MSFTNGP10.phx.gbl...

> Please do write an article. I've looked back through the posts on USB
boot,
> and I haven't found the clue I need.

> I have a very successful IDE CF image. Now, I need USB boot of CF or
> pendrive. I can boot DOS on a removable CF card in a USB reader. So, the
> BIOS is clever enough to do that. I have XPe on a non-removeable CF card,
> and it boots from the IDE CF slot. I can see any USB CD card plugged into
> the USB reader and all the files are accessible. I've marked the USB
> drivers to load at boot time as suggested in earlier posts, but I may be
> missing drivers needed for booting. The CF card will not boot in the USB
> reader. I get an error message "A disk read error occurred. Please use
> Ctl-Alt-Del to reboot." on the screen. Its probably from the BIOS. Maybe
> it can't read non-removeable USB devices. The CF card is partitioned with
a
> single active partition and lots of unpartitioned space. I've tried two
> different USB readers, 2.0 and 1.1, but it doesn't matter.

> Any ideas are welcome.
> --
> Regards.
> Mark K Vallevand

> "Slobodan Brcin" <sbr...@ptt.yu> wrote in message
> news:%237HY0qVxDHA.1740@TK2MSFTNGP09.phx.gbl...
> > Yes it is.

> > You can even run FBA directly from USB disk.
> > And it is easy enough to understand how to do it.

> > These days I'll try to write article that will describe how to do this.

> > Regards,
> > Slobodan

> > "vadik likholetov" <va...@jet.msk.su> wrote in message
> > news:034a01c3c555$80563050$a001280a@phx.gbl...
> > > Is it possible with windows xp embedded?

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