On Thu, Jul 15, 2010 at 08:17, Hans Petter Selasky <hsela...@c2i.net> wrote:
> On Thursday 15 July 2010 15:49:37 James Armstrong wrote:
> > We're trying to boot a machine off a USB drive, and it looks like we're
> > getting a race condition. After going through post, we get the message
> > "FAILED TO MOUNT ROOT" and we enter the mountroot command screen, but
> > amidst that screen, we also get the post message identifying the disk,
> > with the notation that it has a 40.00000MB transfer speed.
> > At the mountroot prompt, entering "ufs:/dev/da0s1a" properly boots.
> > It looks to me like the system is trying to mount root before the USB
> > drivers finish identifying all the devices, including the disk from which
> > we are booting.
> > Have any of you seen this? Any suggestions on how we can correct this?
> > (As an interim, we're going to move the boot to a SATA drive, but we want
> > to use all the SATA ports for other purposes, so this means we're
> > sacrificing a SATA device.)
> Try to set this tunable to 5000, for example.
> kern.cam.boot_delay: 0
This was one of the first things we tried (set at 10000). No joy.
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