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Date:      Tue, 24 Mar 2009 03:49:32 -0500
From:      Robert Noland <rnoland@FreeBSD.org>
To:        Nenhum_de_Nos <matheus@eternamente.info>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Booting from usb hard disk
Message-ID:  <1237884572.1771.28.camel@balrog.2hip.net>
In-Reply-To: <fd2392216bb33e5b66f8fe79459e45e2.squirrel@cygnus.homeunix.com>
References:  <1237804575.1771.7.camel@balrog.2hip.net> <fd2392216bb33e5b66f8fe79459e45e2.squirrel@cygnus.homeunix.com>

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On Mon, 2009-03-23 at 19:40 -0300, Nenhum_de_Nos wrote:
> On Mon, March 23, 2009 07:36, 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 optio=
n
> > 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 i=
s
> > 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 an=
y
> > impact.  It has been suggested that this may be a "geom" timeout, but I
> > don't know anything about the boot system really.
>=20
> I had problem a while ago with via mini itx hardware, that was quite
> close. If I try boot from usb (installed in usb hdd), I get to the point
> of loader not finding my disk.
>=20
> I then used a small flash disk attached to the ata (44 pin ide) channel
> and formatted /boot in there. this way I get to the point of mount root
> you said, and da0 not being alive soon enough to mount root. list disks
> also couldn't find da0 though.
>=20
> I tried current from that time, and no good.
>=20
> if this is solved, I'll be happy to try whatever patch to current. (as
> long as I can install it from another box/or its ata channel, as it can't
> boot vanilla 7.1R)

So, my solution was to set kern.cam.scsi_delay=3D10000
in /boot/loader.conf

You can hit 6 from the boot menu and set it manually the first time.

robert.

> matheus
>=20

--=20
Robert Noland <rnoland@FreeBSD.org>
FreeBSD

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