[Buildroot] Antw: Re: Antw: Re: Antw: Re: How to get the kernel to mount a rootfs without an initramfs ??

Arnout Vandecappelle arnout at mind.be
Wed Feb 12 16:58:49 UTC 2014


On 12/02/14 09:05, Frank Ihle wrote:
>>Actually this sounds like you have no mmc driver in your kernel.
> 
> I'm using the defconfig where
> 
> in make linux-menuconfig is selected the following:
> 
> +Device Drivers
>  <*> MMC/SD/SDIO card support
> + + <*> MMC block device driver
> + + <*> MMC host test driver
> + + <*> Atmel SD/MMC Driver (Atmel Multimedia Card Interface support)
> + + [ * ] Atmel MCI DMA support (Exp.)
> 
> well but now, that you mention it, it's weired. When I do a bootable
> image with this settings but with initramfs and busybox as init system
> then I should be able to see which devices are detected, right? So If I
> do ls /dev/ mmcblk or sdb isn't even in the list, is that a normal behaviour?

 No, it's not.

 The platform bindings may be missing in your board file.

 Which board are you building for? A standard board or a custom one? In
the latter case, you should check with your kernel developer where to
find the MMC device.

 Regards,
 Arnout


-- 
Arnout Vandecappelle                          arnout at mind be
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