The boot.sb image is packaged with the kernel, installation is simpler

core/kernel26-olinuxino/PKGBUILD

@@ -14,9 +14,8 @@ _kernelname=${pkgname#kernel26}
 _basekernel=2.6
 pkgver=${_basekernel}.35.3
 pkgrel=4
-makedepends=('xmlto' 'docbook-xsl' 'make' 'git')
-optdepends=('elftosb: to install the kernel' 
-            'imx-bootlets-olinuxino:  to install the kernel')
+makedepends=('xmlto' 'docbook-xsl' 'make' 'git' 'elftosb' 'imx-bootlets-olinuxino')
+optdepends=()
 options=('!strip' '!buildflags' '!makeflags')
 arch=('arm')
 CARCH=arm
@@ -190,6 +189,11 @@ package_kernel26-olinuxino() {
     -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
     -i $startdir/kernel26.install
 
+  # Generate an imx233 boot image
+  msg "Generating sdcard image ..."
+  ln -sf /opt/imx-bootlets-olinuxino
+  elftosb -z -c ./imx-bootlets-olinuxino/linux.bd -o ${pkgdir}/boot/oli-${_kernver}.sb
+
   # remove build and source links
   rm -f ${pkgdir}/lib/modules/${_kernver}/{source,build}
 }

core/kernel26-olinuxino/kernel26.install

@@ -2,24 +2,15 @@ KERNEL_NAME=-olinuxino
 KERNEL_VERSION=2.6.35-4-OLinuXino-ARCH+
 
 flush_kernel() {
-  if [ -x  /usr/local/bin/elftosb -a -d /boot/imx-bootlets-olinuxino ]; then
-    echo "elftosb and the imx-bootlets appear to be installed."
-    echo "Do you want the new kernel flashed onto mmcblk0p1? [y|N] "
-    # something traps the last line of output, so users can't see the
-    # question ...
-    read -r shouldwe
-    if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
-      echo
-      pushd /boot
-      echo "Generating sdcard image ..."
-      elftosb -z -c ./imx-bootlets-olinuxino/linux.bd -o imx23-olinuxino.sb
-      echo "Flushing the image on /dev/mmcblk0p1 ..."
-      dd if=imx23-olinuxino.sb of=/dev/mmcblk0p1 ibs=512 seek=4 conv=sync,notrunc
-      popd
-    fi
-  else
-    echo "elftosb and/or the imx-bootlets are not installed."
-    echo "You should burn /boot/zImage onto your boot medium."
+  echo "Do you want the new kernel flashed onto mmcblk0p1? [y|N] "
+  # something traps the last line of output, so users can't see the
+  # question ...
+  read -r shouldwe
+  if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
+    echo "Writing the kernel image on /dev/mmcblk0p1 ..."
+    # this first dd is probably unnecessary
+    #dd if=/dev/zero of=/dev/mmcblk0p1 bs=512 count=4
+    dd if=/boot/oli-${KERNEL_VERSION}.sb of=/dev/mmcblk0p1 ibs=512 seek=4 conv=sync,notrunc
   fi
 }