unixnewbie:
SATA disks appear with the /dev/s??? syntax because it was convinient to reuse 
some of the same SCSI machinery to present an interface to the disk to programs 
(see http://kerneltrap.org/node/5549 for details). It's not really emulation 
rather it's just naming. Rumour has it in a future kernel PATA devices will use 
this same libata interface that SATA disks use now and at that point they will 
turn into /dev/s??? nodes too.

Your particular SATA interface is VIA based so it would not be impacted
by this 2.6.20-16 change (which I believe affects some unknown subset of
Intel ICH[456] interfaces). Thanks for tending the forums - I do check
by that thread from time to time but there's a lot to read so I only
actively follow the links to posts that Lars suggests.

I would be interested to hear from ICH6 owners who have the same device 
renaming as Andrew and _especially_ interested to see the
lspci -vvv
lspci -vvvn
cat /proc/interupts  (for 2.6.20-15)
cat /proc/interupts  (for 2.6.20-16)
for Intel ICH[456] users who have IRQ problems that weren't present in 
2.6.20-15.

-- 
SATA disk is in PATA mode with kernel 2.6.20-16-generic (piix claiming SATA 
controller on ICH4/ICH5 boards)
https://bugs.launchpad.net/bugs/116996
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

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