usb/138798: [boot] [usb8] 8.0-BETA4 can't boot from USB flash
drive [regression]
Hans Petter Selasky
hselasky at c2i.net
Thu Jul 1 21:00:54 UTC 2010
On Thursday 01 July 2010 22:30:08 Stef Walter wrote:
> The following reply was made to PR usb/138798; it has been noted by GNATS.
>
> From: Stef Walter <stef at memberwebs.com>
> To: bug-followup at FreeBSD.org, sweetnavelorange at gmail.com
> Cc:
> Subject: Re: usb/138798: [boot] [usb8] 8.0-BETA4 can't boot from USB flash
> drive [regression]
> Date: Thu, 01 Jul 2010 15:19:43 -0500
>
> Just to confirm, 8.1 still has this problem. Verified that 7.2 works.
>
> In my case the I'm booting off a USB stick. The system correctly waits
> for 'usbbus4'. However the USB stick (da0) is not immediately available
> once the 'usbbus4' is present. da0 becomes available immediately after
> the kernel has tried to mount root. The kernel output from da0 is
> intermingled with the 'ROOT MOUNT ERROR' output.
>
> I'm using:
>
> FreeBSD bsd8x.ws.local 8.1-RC1 FreeBSD 8.1-RC1 #3: Fri Jun 18 21:17:53
> UTC 2010 root at bsd8x.ws.local:/usr/obj/usr/src/sys/RACKX amd64
>
> Cheers,
>
> Stef
Hi,
There is a tunable
kern.cam.boot_delay: 0
Which I think you can set which solves this problem.
--HPS
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