Re: El Torito boot over USB-CD

Gert,
Unfortunately we haven't tested this scenario yet as our USB Boot feature's
high priority is intended for mainly USB flash drives and not necessarily
optical drives. We are going to look into it and have at least the right
documentation / guidance in place for our FP release.
If anyone else on the newsgroup had ran into similar issues - please let us
know. I'd be interested to hear if this is a "one off" or we actually have a
generic problem here.
My apologies,
Oren

"Gert Leunen" <Gert.Leunen@xxxxxxxxxxxxxxxxx> wrote in message
news:uKwklWm4GHA.1188@xxxxxxxxxxxxxxxxxxxxxxx
No, it doesn't even get to the "text mode progress bar" at the bottom.
When I disable booting from the harddrive (so only USB-CDROM is in the
BIOS boot sequence), it just says "DISK BOOT FAILURE, INSERT SYSTEM DISK
AND PRESS ENTER.".

Connecting the same drive, with the same disc inserted, directly to the
IDE port (with CDROM in the BIOS boot sequence) boots just fine.

Thanks for looking at this

Gert

"Oren Winter [MS]" <orenw@xxxxxxxxxxxxx> wrote in message
news:egdq1Km4GHA.1200@xxxxxxxxxxxxxxxxxxxxxxx
Gert,
Can you please describe in more details what is not working when trying
to use the CTP's USB Boot components? Are you getting a 0x7B bugcheck?
Thanks,
Oren

"Gert Leunen" <Gert.Leunen@xxxxxxxxxxxxxxxxx> wrote in message
news:eB0aP9l4GHA.668@xxxxxxxxxxxxxxxxxxxxxxx
Hi, I'm using a Pentium M SBC board (Intel 915GM chipset), for which I'm
trying to make an El Torito bootable CD/DVD to start XPe.

- When I directly connect the CD/DVD drive using the IDE connection, my
El Torito DVD boots fine.
- When I connect the same CD/DVD drive to an IDE-to-USB 2.0 converter
and then connect to the mainboard using USB 2.0, that same El Torito DVD
no longer wants to boot.
- If I insert another bootable CD (like Windows PE), still connected
through USB 2.0, that CD does boot.

So, it looks like the IDE-to-USB conversion and the CD/DVD drive are
compliant to allow booting from that CD/DVD drive over USB 2.0, but
there probably is an El Torito implementation issue?

Today I also tried to use the "USB 2.0 Boot", "USB Boot Mass Storage
Device" and "USB NT Hardware Detect" components from the Feature Pack
2007 CTP, but to no avail.

Any suggestions would be greatly appreciated.

Gert Leunen
Software Engineer
R&D International NV







.

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