configs/imx233_olinuxino: Add EXT4 support

index 1040e5e..70e8b5d 100644
@@ -32,6 +32,7 @@ BR2_PACKAGE_ZD1211_FIRMWARE=y
 
 # Filesystem
 BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT4=y
 # BR2_TARGET_ROOTFS_TAR is not set
 
 # U-Boot

index 4b24ac2..d6a7377 100644
@@ -8,12 +8,12 @@ It also pulls up the console on the serial port, not on TV output.
 === Output files after building ==============================================
 
 output/images
-+-- kernel.vfat (VFAT kernel partition image generated by genimage)
++-- boot.vfat (VFAT kernel partition image generated by genimage)
++-- imx23-olinuxino.dtb (device tree blob)
 +-- rootfs.ext2 (Root file system)
 +-- sdcard.img (Complete SD card image generated by genimage)
 +-- u-boot.sd (U-Boot image)
-+-- uImage -> uImage.imx23-olinuxino (To copy kernel as "uImage" to kernel.vfat)
-+-- uImage.imx23-olinuxino (Kernel uImage)
++-- uImage  (Kernel binary)
 
 === Use of generated SD card image ===========================================
 

index d6a7377..2722c3a 100644
@@ -17,13 +17,16 @@ output/images
 
 === Use of generated SD card image ===========================================
 
-Just write sdcard.img directly to the SD card
+To determine the device associated to the SD card have a look in the
+/proc/partitions file:
 
-***** WARNING: Double check that /dev/sdc is your MicroSD card *****
-*****      It might be /dev/sdb or some other device name      *****
-***** Failure to do so may result in you wiping your hard disk *****
+  cat /proc/partitions
+
+Then, run the following command as root:
+
+*** WARNING! The command will destroy all the card content. Use with care! ***
 
-   # dd if=output/images/sdcard.img of=/dev/sdc bs=512
+ sudo dd if=output/images/sdcard.img of=/dev/<your-microsd-device>
 
 === Manual creation of SD card image =========================================
 

index 2722c3a..1e676c4 100644
@@ -27,73 +27,3 @@ Then, run the following command as root:
 *** WARNING! The command will destroy all the card content. Use with care! ***
 
  sudo dd if=output/images/sdcard.img of=/dev/<your-microsd-device>
-
-=== Manual creation of SD card image =========================================
-
-You'll need a spare MicroSD card with Freescale's special partition layout.
-This is basically three partitions:
-
-1) Type 53, the U-Boot partition, should be 16MB.
-2) VFAT, place the kernel uImage there
-3) Anything you like, for this example an ext2 partition, type 83 (linux).
-
-Assuming you see your MicroSD card as /dev/sdc you'd need to do, as root
-and from the buildroot project top level directory:
-(remember to replace /dev/sdc* with the appropiate device name!)
-
-***** WARNING: Double check that /dev/sdc is your MicroSD card *****
-*****      It might be /dev/sdb or some other device name      *****
-***** Failure to do so may result in you wiping your hard disk *****
-
-1. Unmount the filesystem(s) if they're already mounted, usually...
-
-   # for fs in `grep /dev/sdc /proc/mounts|cut -d ' ' -f 1`;do umount $fs;done
-
-   ...should work
-
-2. Blank the partition table out
-
-   # dd if=/dev/zero of=/dev/sdc bs=1024 count=1024
-
-3. Set up the partitions
-
-   # fdisk /dev/sdc
-   n
-   p
-   1
-   <ENTER>
-   +16MB
-   t
-   53
-   n
-   p
-   2
-   <ENTER>
-   +5M
-   t
-   2
-   4
-   n
-   p
-   3
-   <ENTER>
-   <ENTER>
-   w
-
-4. Fill up the first (U-Boot) partition
-   # dd if=output/images/u-boot.sd bs=512 of=/dev/sdc1
-
-5. Create VFAT Filesystem
-   # mkfs.vfat /dev/sdc2
-
-6. Mount and copy output/images/uImage.imx23-olinuxino to the VFAT partition, rename to uImage
-   # mount /dev/sdc2 /mnt
-   # cp output/images/uImages/uImage.imx23-olinuxino /mnt/uImage
-   # umount /mnt
-
-7. Fill up the third (filesystem) partition
-   # dd if=output/images/rootfs.ext2 of=/dev/sdc3 bs=512
-
-8. Remove the MicroSD card from your linux PC and put it into your olinuxino.
-
-9. Boot! You're done!