On Tuesday 11 December 2007 00:32:09 Takayoshi Kochi wrote:
> Hi,
>
> Haven't heard from Bernd, but I've had a similar experience.
> Mine has an ICH9 AHCI and has 4 ports on the motherboard.
> 2 ports are connected to hard drives and the 3rd one is connected
> to SATA DVD drive.
>
> Below are relevant pieces from dmesg:
>
> ahcisata0 at pci0 dev 31 function 2: Intel 82801I AHCI SATA Controller
> with 4 ports
> ahcisata0: interrupting at ioapic0 pin 19 (irq 15)
> ahcisata0: AHCI revision 0x10200, 4 ports, 32 command slots, features
> 0xef22e0c0 atabus1 at ahcisata0 channel 0
> atabus2 at ahcisata0 channel 1
> atabus3 at ahcisata0 channel 4
> atabus4 at ahcisata0 channel 5
> ahcisata0 port 0: device present, speed: 3.0Gb/s
> wd0 at atabus1 drive 0: <Hitachi HDT725032VLA360>
> ahcisata0 port 1: device present, speed: 1.5Gb/s
> ahcisata0 port 4: device present, speed 1.5Gb/s
> wd0: drive supports 16-sector PIO transfers, LBA48 addressing
> wd0: 298 GB, 620181 cyl, 16 head, 63 sec, 512 bytes/sect x 625142448
> sectors wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6
> (Ultra/133) wd0(ahcisata0:0:0): using PIO mode 4, DMA  mode 2, Ultra-DMA
> mode 6 (Ultra/133) (using DMA)
> wd1 at atabus2 drive 0: <ST506>
> wd1: drive supports 1-sector PIO transfers, chs addressing
> wd1: 69632 KB, 1024 cyl, 8 head, 17 sec, 512 bytes/sect x 139264 sectors
> wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> wd1(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6
> (Ultra/133) (using DMA)
> wd2 at atabus3 drive 0: <ST506>
> wd2: drive supports 1-sector PIO transfers, chs addressing
> wd2: 69632 KB, 1024 cyl, 8 head, 17 sec, 512 bytes/sect x 139264 sectors
> wd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> wd2(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6
> (Ultra/133) (using DMA)
>
> The second drive (which should have 160GB capacity) was not correctly
> detected. And it is strange that the DVD drive was detected as wd2.
>
> After that, the kernel tried to read mbr on wd2, which of course fails:
>
> wd2d: error reading fsbn 0 (wd2 bn 0; cn 0 tn 0 sn 0), retrying
> wd2: (aborted command)
> ahcisata0 port 4: device present, speed: 1.5Gb/s
>
> This retry repeated about 40 times.
>
> The full dmesg is available on request.

G'day,

I solved my problem. I used a new motherboard with a BIOS that, unknown to me 
until I looked for it, had the controller option set to RAID. The other 
options were SATA and AHCI. The controller works in SATA and AHCI mode, the 
latter I use know. Unfortunately, RAID mode for this controller is currently 
not supported.

cheerio Berndt