USB problem - how to disable an umass device?

[Ivan Voras]

I'm trying to install 6.2-release on an IBM blade center blade (AMD
Opteron), but the boot process hangs while accessing an embedded USB
storage device umass1. Since I don't think I'll ever need it, and I need
the blade, is there any way to disable probing or usage of umass1? I
think the problems arrive when FreeBSD tries to attach "da" device to it.

Alternatively, I can try disabling parts of the USB "chain", since
umass1 is connected to uhub1 which is connected to usb2, but how? (I
cannot disable USB in general because internal keyboard is attached to it)

I tried using loader hint hint.usb.2.disabled="1" but it doesn't work.


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