On Mon, Apr 5, 2010 at 4:24 PM, Boris Samorodov <b...@ipt.ru> wrote:
> On Thu, 1 Apr 2010 07:38:53 -0500 Peter Steele wrote:
>
>> We clone systems from specially prepared USB flash sticks and this all works 
>> well, except that occasionally the flash stick fails to boot. It fails at 
>> the "mount root" step, saying that it cannot mount the specified root 
>> partition. We use a labeled partition on the disk to make it device 
>> independent, so we have something like
>
>> /dev/label/usbroot  /    ufs    rw     1      1
>
>> in our fstab. When it fails it doesn't recognize this device, and even ? 
>> doesn't list it as one of the available devices. If we reboot, it's likely 
>> the problem won't occur again. It seems to be some kind of timing issue. Is 
>> this a known problem?
>
> You can try to solve the problem by:
> -----
> # echo "kern.cam.boot_delay=10000" >> /boot/loader.conf
> -----

above did not work for me, however this did:

kern.cam.scsi_delay=10000
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