libre: uboot4extlinux-sunxi: sync with uboot4extlinux-am335x

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 18 insertions, 7 deletions

diff --git a/libre/uboot4extlinux-sunxi/uboot4extlinux-sunxi.install b/libre/uboot4extlinux-sunxi/uboot4extlinux-sunxi.install
index 51b209923..4419c21af 100644
--- a/libre/uboot4extlinux-sunxi/uboot4extlinux-sunxi.install
+++ b/libre/uboot4extlinux-sunxi/uboot4extlinux-sunxi.install
@@ -1,16 +1,27 @@
+flash_instructions() {
+  echo "# dd if=/boot/u-boot-sunxi-with-spl.bin of=/dev/mmcblk0 bs=1024 seek=8"
+}
+
 extlinux_warning() {
   echo "==> WARNING: Remember to set up your kernels in /boot/extlinux/extlinux.conf"
 }
 
 flash_uboot() {
-  echo "A new U-Boot version needs to be flashed onto /dev/mmcblk0."
-  echo "Do you want to do this now? [y|N]"
-  read -r shouldwe
-  if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
-    dd if=/boot/u-boot-sunxi-with-spl.bin of=/dev/mmcblk0 bs=1024 seek=8
+  root=$(mount | awk '/ on \/ / { print $1; }')
+  if [[ $root =~ ^/dev/mmcblk.*$ ]]; then
+    root=${root:0:12}
+    echo "A new U-Boot version needs to be flashed onto $root."
+    echo "Do you want to do this now? [y|N]"
+    read -r shouldwe
+    if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
+      dd if=/boot/u-boot-sunxi-with-spl.bin of=$root bs=1024 seek=8
+    else
+      echo "You can do this later by running:"
+      flash_instructions
+    fi
   else
-    echo "You can do this later by running:"
-    echo "# dd if=/boot/u-boot-sunxi-with-spl.bin of=/dev/mmcblk0 bs=1024 seek=8"
+    echo "Flash the new U-Boot version onto your boot device. For example:"
+    flash_instructions
   fi
   extlinux_warning
 }