Missing SATA drive after upgrade to 7.0

[Christopher Cowart]

Hello,

I was in the process of upgrading from 6.2 to 7.0. After the
installkernel, I rebooted into single, only to find the mountroot
prompt:

| Trying to mount root from ufs:/dev/ad2s1a
| 
| Manual root filesystem specification:
|   <fstype>:<device>  Mount <device> using filesystem <fstype>
|                        eg. ufs:da0s1a
|   ?                  List valid disk boot devices
|   <empty line>       Abort manual input
| 
| mountroot> ?
| 
| List of GEOM managed disk devices:
|   acd0 fd0

Boot messages for 7.0 (grep -i ata dmesg-7.0):
| atapci0: <Intel 6300ESB SATA150 controller> port 
|     0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1470-0x147f at device 31.2 
|     on pci0
| ata0: <ATA channel 0> on atapci0
| ata0: [ITHREAD]
| ata1: <ATA channel 1> on atapci0
| ata1: [ITHREAD]
| acd0: CDROM <LG CD-ROM CRN-8245B/1.16> at ata0-master UDMA33

Boot messages for 6.2 (grep -i ata dmesg-6.2):
| atapci0: <Intel 6300ESB SATA150 controller> port 
|     0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1470-0x147f at device 31.2 
|     on pci0
| ata0: <ATA channel 0> on atapci0
| ata1: <ATA channel 1> on atapci0
| acd0: CDROM <LG CD-ROM CRN-8245B/1.16> at ata0-master UDMA33
| ad2: 76324MB <Seagate ST380013AS 3.25> at ata1-master SATA150

Any ideas where my harddrive went? I can `boot kernel.old' without any
problems. I think this post [1] might be related. Unfortunately, the
problem went away for the person who submitted the referenced PR. 

[1] http://lists.freebsd.org/pipermail/freebsd-i386/2008-January/006239.html

-- 
Chris Cowart
Network Technical Lead
Network & Infrastructure Services, RSSP-IT
UC Berkeley
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