The quimesis_imx6dl_quimbrain defconfig from the buildroot-quimesis repository can be used to generate a basic Linux system running on the QuimBrain :

$ git clone ssh://dev.quimesis.be:29418/buildroot-quimesis
$ cd buildroot-quimesis
$ make O=build_quimbrain quimesis_imx6dl_quimbrain_defconfig
$ cd build_quimbrain
$ make

Once the build has succeeded, flash an SD card as follow¹⁾ :

1. create a rootfs partition

   sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << EOF | sudo fdisk <sd_device>
     d # clear the in memory partition table
     n # new partition
      # default - primary partition
      # default - partition number 1
      # default - first sector : 2048
      # default - last sector : 7744511
     w # write the partition table
     q # and we're done
   EOF

2. format the rootfs partition in ext-2

   $ sudo mkfs.ext2 <sd_device>1 -L rootfs

3. copy the SPL and u-boot to the SD card

    $ cd images
    $ sudo dd if=SPL of=<sd_device> bs=1k seek=1
    $ sudo dd if=u-boot.img of=<sd_device> bs=1k seek=42

4. copy the rootfs to the rootfs partition

    $ sudo tar xvf rootfs.tar -C </path/to/rootfs/mount/point>