Date: Mon, 30 Mar 2009 16:04:17 +0100 From: "Paul B. Mahol" <onemda@gmail.com> To: Andrew Thompson <thompsa@freebsd.org> Cc: freebsd-current@freebsd.org, Nenhum_de_Nos <matheus@eternamente.info>, Robert Noland <rnoland@freebsd.org> Subject: Re: Booting from usb hard disk Message-ID: <3a142e750903300804r75d6ef81kae69cdfdb618b719@mail.gmail.com> In-Reply-To: <20090330061036.GA83528@citylink.fud.org.nz> References: <1237804575.1771.7.camel@balrog.2hip.net> <fd2392216bb33e5b66f8fe79459e45e2.squirrel@cygnus.homeunix.com> <1237884572.1771.28.camel@balrog.2hip.net> <20090330061036.GA83528@citylink.fud.org.nz>
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On 3/30/09, Andrew Thompson <thompsa@freebsd.org> wrote: > On Tue, Mar 24, 2009 at 03:49:32AM -0500, Robert Noland wrote: >> 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 >> > > 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 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. >> > >> > 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. >> > >> > I tried current from that time, and no good. >> > >> > 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=10000 >> in /boot/loader.conf > > The following patch should work. It creates interleaving root hold > tokens from the CAM probe to disk_create and geom providor tasting. > I had to add a malloc type flag as sleeping isnt allowed at the point I > added the token alloc in CAM. > > http://people.freebsd.org/~thompsa/root_wait.diff Hmm, this is supposed to fix issue when trying to boot from usb disk with UP kernel? -- Paul
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