diff --git a/build/initialization.sh b/build/initialization.sh
index 81818d725..aaf792eff 100755
--- a/build/initialization.sh
+++ b/build/initialization.sh
@@ -4,6 +4,7 @@
 set -e
 
 ! test -f /etc/docker/daemon.json || rm /etc/docker/daemon.json
+mount -o remount,rw /boot/firmware
 
 apt-get update
 apt-get purge -y \
diff --git a/build/quick-flash.sh b/build/quick-flash.sh
index 1213abc0b..686b3639a 100755
--- a/build/quick-flash.sh
+++ b/build/quick-flash.sh
@@ -96,13 +96,13 @@ if [[ "$(uname)" == "Darwin" ]]; then
 	if which pv > /dev/null; then
 		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | pv -s $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1m 2>/dev/null
 	else
-		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct
+		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1m
 	fi
 else
 	if which pv > /dev/null; then
-		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | pv -s $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct 2>/dev/null
+		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | pv -s $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct conv=fsync 2>/dev/null 
 	else
-		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct
+		sudo cat ${SOURCE_PARTITION} | head -c $FS_SIZE | sudo dd of=${TARGET_PARTITION} bs=1M iflag=fullblock oflag=direct conv=fsync
 	fi
 fi
 echo Verifying...
diff --git a/build/write-image.sh b/build/write-image.sh
index 349f8a3cb..bf692d58e 100755
--- a/build/write-image.sh
+++ b/build/write-image.sh
@@ -4,9 +4,9 @@ set -e
 
 # Write contents of LOOPDEV (Ubuntu image) to sd card and make filesystems, then detach the loop device
 echo USING $LOOPDEV TO IMAGE $OUTPUT_DEVICE
-sudo dd if=${LOOPDEV}p1 of=${OUTPUT_DEVICE}p1 bs=4096 conv=fsync status=progress
+sudo dd if=${LOOPDEV}p1 of=${OUTPUT_DEVICE}p1 bs=1M iflag=fullblock oflag=direct conv=fsync status=progress
 sudo mkfs.vfat -F 32 ${OUTPUT_DEVICE}p2
-sudo dd if=${LOOPDEV}p2 of=${OUTPUT_DEVICE}p3 bs=4096 conv=fsync status=progress
+sudo dd if=${LOOPDEV}p2 of=${OUTPUT_DEVICE}p3 bs=1M iflag=fullblock oflag=direct conv=fsync status=progress
 sudo mkfs.ext4 ${OUTPUT_DEVICE}p4
 
 sudo losetup -d $LOOPDEV