Hi Shalini,
Below is the basic steps for SD card boot on iMX6. Create two
partitions on the SD card ext2 for boot and ext4 for rootfs using following
commands.
*Create the partions:*
*sudo dd if=/dev/zero of=/dev/sdX bs=1M count=16*
*sudo mkfs.ext2 /dev/sdX1 -L boot*
*sudo mkfs.ext4 /dev/sdX2 -L rootfs*
*Mount the partions:*
*sudo mkdir -p /media/boot/*
*sudo mkdir -p /media/rootfs/*
*sudo mount /dev/sdX1 /media/boot/*
*sudo mount /dev/sdX2 /media/rootfs/*
*Copy the binaries to SD card:*
*sudo tar xfvp yocto-build/tmp/deploy/rootfs.tar -C /media/rootfs/*
*sudo cp -v yocto-build/tmp/deploy/kernel-image /media/boot*
*sudo cp -v yocto-build/tmp/deploy/kernel-dtb /media/boot*
*Edit the fstab file as shown below:*
*sudo nano /media/rootfs/etc/fstab*
*/dev/sdX2 / auto errors=remount-ro 0 1*
*/dev/sdX1 /boot/uboot auto defaults 0 2*
Make sure your uboot environment variables are set properly for sd card
flash.
On Mon, Apr 6, 2015 at 6:23 AM, Shalini K P <[email protected]>
wrote:
> Hi,
>
>
>
> I have prepared an Yocto SD card image
> "core-image-minimal-imx6q-sabresd.sdcard". I trying to flash the image
> onto sdcard using the command
>
> *"sudo dd if= core-image-minimal-imx6q-sabresd.sdcard of=/dev/sdb bs=1M"*
>
> *Sync*
>
> *Sync*
>
>
>
> I m getting the boot messages as below
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> *U-Boot 2014.10+fslc+g5fd0b60 (Apr 03 2015 - 18:55:01) CPU: Freescale
> i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: MX6-SabreSD I2C: ready
> DRAM: 1 GiB MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 *** Warning - bad
> CRC, using default environment No panel detected: default to Hannstar-XGA
> Display: Hannstar-XGA (1024x768) In: serial Out: serial Err: serial
> PMIC: PFUZE100 ID=0x10 Net: FEC [PRIME] Hit any key to stop autoboot: 1
> *
>
> I m stuck up badly. It is not going further. Does the sdcard image
> contain ΓΌ-boot, kernel image and rootfs ? or should I flash u-boot
> separately ? I even tried flashing both u-boot and sdcaed image. But
> getting same messages. Request help in this regard. I'm using Dizzy
> branch and SABRESD Evk board.
>
>
>
>
>
> Thanks & Regards
>
> Shalini K P
>
>
>
> *L&T Technology Services Ltd*
>
> www.LntTechservices.com <http://www.lnttechservices.com/>
>
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--
*Thanks & Regards,*
*Sandeep G R*
--
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