Hi,
I got a little confused about the sense or nonsense of AHCI vs. IDE.
I run a ASUS Crosshair IV Formula, which BIOS has a menu entry to
configure the SATA ports either for IDE or AHCI or RAID. Forget RAID
for a momen -- I dont use it (nothing against RAID ! ;)
My box uses a linux 2.6.37 vanilla kernel.
The kernel config has been set to
CONFIG_SATA_AHCI=y
# CONFIG_SATA_AHCI_PLATFORM is not set
In the dmesg output I found this:
pci 0000:00:11.0: set SATA to AHCI mode
ahci 0000:00:11.0: AHCI 0001.0200 32 slots 4 ports 3 Gbps 0xf impl SATA mode
ahci 0000:07:00.0: AHCI 0001.0000 32 slots 2 ports 3 Gbps 0x3 impl SATA mode
despite the fact that AHCI is disabled in the BIOS settings (using
IDE).
I did an experiment an disabled AHCI in the kernel (to make the kernel
settings consistent with the BIOS.)
Result: The kernel did not find the root partition.
In the meanwhile I do not understand all this never more.
Why does the kernel boots only, if the BIOS says "IDE!" and linux
insists on "AHCI!"...and waht ist the result?
Best regards,
mcc
