linux-kernel - Re: How to determine the information about SATA controller

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Date:	Sat, 11 Sep 2010 18:05:23 +0530
From:	Jaswinder Singh Rajput <jaswinderlinux@...il.com>
To:	Mikael Pettersson <mikpe@...uu.se>
Cc:	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: How to determine the information about SATA controller

Hello,

On Sat, Sep 11, 2010 at 4:13 PM, Mikael Pettersson <mikpe@...uu.se> wrote:
> Jaswinder Singh Rajput writes:
>  > Hello,
>  >
>  > My old IDE hard disk is broken so I installed new SATA drive on my box with F13:
>  >
>  > dmesg :
>  > http://userweb.kernel.org/~jaswinder/P4_HT/dmesg_2633_fc13.txt
>  >
>  > lsmod:
>  > http://userweb.kernel.org/~jaswinder/P4_HT/lsmod_2633_fc13.txt
>  >
>  > lspci:
>  > 00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM
>  > Controller/Host-Hub Interface (rev 02)
>  > 00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated
>  > Graphics Controller (rev 02)
>  > 00:06.0 System peripheral: Intel Corporation 82865G/PE/P Processor to
>  > I/O Memory Interface (rev 02)
>  > 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
>  > 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC
>  > Interface Bridge (rev 02)
>  > 00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE
>  > Controller (rev 02)
>  > 00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
>  >
>  > I am trying to build the kernel with this config:
>  > http://userweb.kernel.org/~jaswinder/P4_HT/config-ht-test.txt
>  >
>  > But I am getting error :
>  >
>  > No root device found.
>  > Boot has failed, sleeping forever
>  >
>  > I am trying to determine the information about the SATA controller so
>  > that I can choose the appropriate controller for SATA in kernel
>  > config. I am not able to figure out the SATA information from above
>  > dmesg and lsmod. How can I do so.
>
> In your working dmesg the disks are controlled by ata_piix,
> but you've disabled CONFIG_ATA_PIIX in the config you're trying.
> So it's not surprising that you can't boot.
>
> 1) re-enable CONFIG_ATA_PIIX and disable CONFIG_IDE

I have enabled CONFIG_ATA_PIIX
and disabled CONFIG_IDE

but still getting same error :

No root device found.
Boot has failed, sleeping forever

Am I missing some more options.

> or
> 2) go into the bios and change the option that says whether to run
>   the ATA controller in legacy/compatible mode or enhanced/ahci mode,
>   you want ahci mode
>

In my case, BIOS options are enhanced / legacy / disabled. I tried all
but of no use. So I am using enhanced to boot Fedora 13 kernel.

Thanks,
--
Jawinder Singh.
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