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