Booting over USB 2.0 (over XP), some success...

> Hello,
>
> I am trying to get a windows xp USB 2.o driver installed.
> Where on MS world can i get this. please help.
>
> thanks.
> gentletropic@hotmail.com
>
>

> >-----Original Message-----
> >Hi all,
> >
> >I am attempting to make XP boot over USB (1.1 or 2.0). I

> know that this type

> >of booting is "unsupported" by Microsoft. In fact, you

> cant even install XP

> >on a USB drive. However, if the bios supports it, it is

> possible to boot

> >from USB form a pre-installed version of XP.
> >
> >First, I really think that there is no need for any

> driver developpement

> >since XP has every driver needed to boot over USB. My

> first attempt at a

> >boot from USB resulted in a reboot after MUP.sys. Now it

> crossed my mind

> >that maybe USB was not enabled at boot time so I created

> a new Group called

> >USB miniport and USB storage and placed usbehci.sys,

> usbohci, usbhub and

> >usbstor right after SCSI miniport in load order. I also

> changed the types so

> >that USB is loaded at kernel time.
> >
> >I boot in /sos and see the USB drivers load right after

> the SCSI miniport.

> >Unfortunetly, no luck I still have a reboot after

> MUP.sys.

> >
> >I then installed DriverStudio to see if I could write a

> simple USB mass

> >storage driver to make things work. But after installing

> DriverStudio I

> >tried again to boot over usb to see what happens with

> SoftIce and behold:

> >the thing boots! It works even when you skip the boot

> message stating if you

> >would like to skip the debugging.
> >
> >The only wierd part is that to log in to XP I now need

> to press cntl-alt-del

> >when it says "loading personnal setings..." when you

> click on your username

> >because it freezes.
> >
> >I investigated and found that SoftIce creates a group

> called NTIce that

> >loads 4 drivers: nwfilter, sigvid, sigsym and ntice. Now

> something in these

> >drivers is causing the USB boot to work. I just have no

> idea what that is.

> >
> >My idea is that sigsiv is printing a message on the

> screen saying "Do you

> >want to load .... (press ESC to skip)" and waits a

> couple of seconds. Is it

> >possible that this give the USB drivers enough time to

> enumerate the storage

> >disk and boot or are these 4 drivers doing some obscure

> thing that would

> >suddenly make the USB boot work? I know that sigsiv does

> more than just

> >print a message to the screen. It must capture mouse

> events and connect to

> >the VGA adapter to print the message. Maybe this is what

> is causing the boot

> >to work for some unknown reason...
> >
> >Without this knowledge what approach could I use to boot

> over USB? Would it

> >be a good approach to write an upper layer driver that

> would make the glue

> >between USBSTOR and the primary boot disk drivers?

> Should I write my own USB

> >storage driver which I could then use in the

> installation of XP using F6 in

> >the textual part?
> >
> >What options do you think would work?
> >
> >Thanks in advance for any help,
> >Daniel Shane
> >
> >
> >
> >.
> >