Date: Mon, 23 Mar 2009 21:12:06 -0300 (BRT) From: "Nenhum_de_Nos" <matheus@eternamente.info> To: freebsd-current@freebsd.org Subject: Re: Booting from usb hard disk Message-ID: <800e97aebad7e157c6b31466447501f7.squirrel@cygnus.homeunix.com> In-Reply-To: <3a142e750903231646x165d2bf2jcac4c6ca2c83702c@mail.gmail.com> References: <200903231541.n2NFfP6f002755@monk.cnd.dundas.on.ca> <1237829409.1771.13.camel@balrog.2hip.net> <3a142e750903231646x165d2bf2jcac4c6ca2c83702c@mail.gmail.com>
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On Mon, March 23, 2009 20:46, Paul B. Mahol wrote: > On 3/23/09, Robert Noland <rnoland@freebsd.org> wrote: >> On Mon, 2009-03-23 at 11:41 -0400, Douglas Berry wrote: >>> On Mon, 23 Mar 2009 05:36:15 CDT, Robert Noland wrote: >>> > So I have my i386 install on a usb hard disk, which I can only boot >>> > on one machine now. The one machine that I can make work has a bios >>> > option that reads "BIOS ehci handoff". This used to work with the >>> > old usb stack. The machines that it doesn't work on, boot the >>> > kernel, but fail to mount root, giving me the forbidding mountroot> >>> > prompt, which is immediately followed by the message saying that da0 >>> > is attached. da0 is however not listed in the available boot >>> > devices list. I tried playing around with the timeout in >>> > vfs_mount.c, but that didn't seem to have any impact. It has been >>> > suggested that this may be a "geom" timeout, but I don't know >>> > anything about the boot system really. >>> >>> I have been using tunefs(8) labeled partitions on my usb hard disk >>> under CURRENT. I changed the fstab entries to match the labels >>> (eg. assume mylabel is myroot, /dev/da0s1a becomes /dev/ufs/myroot) >>> It works well on most systems. On some systems, I see the symptom >>> you show, but I am saved by the labels showing up just after the >>> mountroot prompt. I am then able to type >>> >>> ufs:/dev/ufs/myroot >>> >>> and resume the boot. Maybe this helps you? >> >> Well, I haven't tried labeling the partitions, but ufs:/dev/da0s1a >> doesn't work from the rootmount> prompt. Even after da0 shows up. > > That is strange, I just recently have used one of usb sticks (256MB) to > fix > stupid sysinstall error. In my case da0 appeared after some delay but > usual da0s1a appeared after ? and I was able to mount root > partition multiple times. > I used usb via modules, on i386 revision r190297, with "boot -s" > (I hacked fbsd installation on stick because I didnt have time for fine > details ....) > > Could try just with uhci (but it will be too sloow) how can I make it use this module and not another ? (how to force) matheus -- We will call you cygnus, The God of balance you shall be
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