From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnout Vandecappelle Date: Wed, 12 Feb 2014 17:58:49 +0100 Subject: [Buildroot] Antw: Re: Antw: Re: Antw: Re: How to get the kernel to mount a rootfs without an initramfs ?? In-Reply-To: <52FB3968020000460004A91A@gwia2.rz.hs-offenburg.de> References: <1102199395.5272670.1392112422985.JavaMail.root@openwide.fr> <52FA5E23.3090109@mind.be> <52FB3968020000460004A91A@gwia2.rz.hs-offenburg.de> Message-ID: <52FBA849.3060101@mind.be> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net 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 Senior Embedded Software Architect +32-16-286500 Essensium/Mind http://www.mind.be G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F