Explode overlay tar

overlay/sbin/butterknife-select-disk

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+if [ -z "$(ls /sys/class/block/)" ]; then
+    dialog --msgbox "Butterknife was unable to detect any harddisks,\
+        are you sure harddisk is connected and we have drivers for it?" 0 0
+    exit 255
+fi
+
+for disk in /sys/class/block/*; do
+    if [ -d $disk/device ]; then
+        slug=$(basename $disk)
+        sector_count=$(cat $disk/size)
+        sector_size=$(cat $disk/queue/hw_sector_size)
+        # Hack around these dumbass cardreaders
+
+        if [ "$sector_count" == "0" ]; then
+            continue
+        fi
+        size=$(expr $sector_count / 1000000 \* $sector_size / 1000 || true)G
+
+        if [ -f $disk/device/model ]; then
+            echo "$slug \"$(cat $disk/device/model | xargs) ($size)\"";
+        else
+            echo "$slug \"$size\"";
+        fi
+    fi
+done > /tmp/disks
+
+dialog \
+    --menu "Target disk" 0 0 0 \
+    --file /tmp/disks
+
+