Linux 10.04 liveCD won't detect all six 2TB HDs on ICH9R

[VirtualLarry]

Building my storage server, and I just installed six Hitachi 7K3000 HDs, 2TB, plugged into ports 0-5 on my Intel ICH9R controller.

BIOS detects them all, but Linux only seems to detect five of them.

Edit: Win7 boot install DVD detects all six. Guess Linux still doesn't support ICH9R correctly?

 

[Cerb]

I've had detection problems on Linux when not all ports are set identically (not all AHCI/native, not all IDE, etc.), on my P35-DS3R. It's always the same two non-JMicron ports, too (the front two closest to the PCI-e 16x slot, which thanks to being covered by a video card cooler, I can't read the silk-screening of). I figured that there was something up with sharing BIOS code between non-R ICH mobos (just speculation, based on 4 v. 6 ports, and two problem ports), but never delved into the problem. Setting everything [back] to AHCI or native would generally take care of it (I only use other settings to do data recover on old drives, anyway).

Also, have you tried a distro other than Ubuntu? I trust Ubuntu to have something new and shiny every six months; I trust other distros when I want to get work done. It could be something like one of the drives not responding on boot quick enough, and the Linux SATA driver giving up and moving on, too.

 

[Knavish]

Are you just looking for them thru the GUI interface, or did you check for hints in the syslog for an /dev/sdf?