On Wed, Mar 23, 2016 at 10:34 AM, Dan McDonald <dan...@omniti.com> wrote:
>
>> On Mar 23, 2016, at 8:43 AM, Guenther Alka <a...@hfg-gmuend.de> wrote:
>>
>> I was able to install ESXi 6u2 but when I tried a barebone install of OmniOS
>> 151016 or 151017, after booting from USB, I got a:
>
> Booting from USB?
>
> I believe these boards are USB3/XHCI only, or at least XHCI by default.

FYI, I recently took delivery of a system based on X11SSM-F, a similar
board from the same series, and I can confirm that it is XHCI-only.
Even the onboard ports that are nominally EHCI/USB2 (black connectors
vs. blue for USB3) are actually just XHCI ports masquerading as EHCI.
The only USB controller seen by `prtconf -d` is XHCI:

pci15d9,896 (pciex8086,a12f) [Intel Corporation Sunrise Point-H USB
3.0 xHCI Controller] (driver not attached)

There is no "USB2 mode" to be found in the BIOS either.  The only
related thing is something called "Install Windows 7 USB Support",
which didn't help anything when enabled, as far as hardware visible to
the OS.  I guess it only affects the pre-boot environment.

I had to buy an add-in USB2 card (harder to find than you would think)
and even then, I have to have the local keyboard on the onboard port
to do anything in the pre-boot environment (including GRUB), then
switch to the off-board card once the OS is up.  Annoying, but those
are the breaks when you get the latest-and-greatest. :)

Eric


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