On Tue, Mar 12, 2013 at 09:24:55AM +0000, James Griffin wrote: > Hi > > I wondered if someone would be kind enough to explain some dmesg output > I do not understand. > > This is the output: > > > pciide0 at pci0 dev 3 function 2 "Intel Q45 PT IDER" rev 0x03: DMA > (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI
This means pciide has no specific knowledge of how to handle this device so it doesn't try to do DMA modes. > pciide0: using apic 2 int 18 for native-PCI interrupt > pciide0: channel 0 ignored (not responding; disabled or no drives?) > pciide0: channel 1 ignored (not responding; disabled or no drives?) Likewise we can't tell if a drive is there or not with the generic handling. These "IDE-R" devices aren't real hardware but rather part of Intel's Active Management Technology (AMT), and likely work differently to the old piix4/ich style IDE. For the AMT serial over lan you can use amtterm, it isn't clear if there is something similiar for IDE-R.
