poweredge 1850 won't boot 7.1? maybe LSI-related : amr0: adapter is busy

[Olivier Mueller]

On Wed, 2009-02-11 at 10:38 -0500, Brian A. Seklecki wrote:
> There's already discussion about this in the archives.  We're aware and
> working on it.
> 
> Set:
> /boo/loader.conf
> kern.cam.scsi_delay=20000
> As a work-around for now.

Many thanks for your answer, it fixed the problem for now.
Now it looks like that:

amr0: <LSILogic MegaRAID 1.53> mem 0xd80f0000-0xd80fffff,0xdfde0000-0xdfdfffff irq 46 at device 14.0 on pci2
amr0: Using 64-bit DMA
amr0: [ITHREAD]
amr0: delete logical drives supported by controller
amr0: <LSILogic PERC 4e/Si> Firmware 521X, BIOS H430, 256MB RAM
amr0: delete logical drives supported by controller
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 69880MB (143114240 sectors) RAID 1 (optimal)
ses0 at amr0 bus 0 target 6 lun 0
Trying to mount root from ufs:/dev/amrd0s1a

Regards & a nice week to you and the other readers, 
Olivier