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From: russell <russm-freebsd-questions@slofith.org>
Date: Mon, 20 Sep 2004 13:19:26 +1000
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Subject: disabling USB in install kernel
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Hi all,

I'm trying to get FreeBSD installed on a Sony VAIO U50, but the install 
kernel never gets past probing the USB devices and I can't for the life 
of me work out how to disable USB. In OpenBSD I "boot -c" to bring up 
the user kernel config and then "disable uhci*" and all is good, but 
the FreeBSD equivalent eludes me. The ports are all USB2, and the 
responses I've seen to other people with similar symptoms is to tell 
the BIOS to not emulate a PS-2 keyboard and mouse - unfortunately my 
BIOS doesn't have any options along those lines.

I'm PXE-booting the 5.3B4 installer, at the beastie screen I drop to 
the loader prompt, and then

set hint.uhci.0.disabled=1
set hint.uhci.1.disabled=1
set boot_userconfig=1
boot

but I never see the userconfig screen and the kernel boots the same as 
if none of those options were set. Here is the tail end of the messages 
the kernel shows - after the second uhub1 message it just stops (I've 
left it for 10 minutes or so and there's no progress). Any suggestions 
would be much appreciated.

uhci0: <Intel 82801DB (ICH4) USB Controller USB-A> port 0x1820-0x183f 
irq 9 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801DB (ICH4) USB Controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801DB (ICH4) USB Controller USB-B> port 0x1840-0x185f 
irq 9 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801DB (ICH4) USB Controller USB-A> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered


cheers

Russell