fix sd-ext in fstab
diff --git a/mkfstab.sh b/mkfstab.sh
index e18c726..c30737f 100755
--- a/mkfstab.sh
+++ b/mkfstab.sh
@@ -32,4 +32,4 @@
   echo "/dev/block/mtdblock$mtd  /$mount $type rw" >> /etc/fstab
 done
 echo "/dev/block/mmcblk0p1" /sdcard vfat rw >> /etc/fstab
-echo "/dev/block/mmbblk0p2" /sd-ext vfat rw >> /etc/fstab
+echo "/dev/block/mmcblk0p2" /sd-ext ext4 rw >> /etc/fstab