diff --git a/patch/kernel/cubox-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/cubox-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
index c70c2d6841..d75fd7adcc 100644
--- a/patch/kernel/cubox-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/cubox-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
@@ -182,7 +182,7 @@ index 152d4d2..9b30ad2 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/cubox-dev/packaging-3.14-DEV-with-postinstall-scripts.patch b/patch/kernel/cubox-dev/packaging-3.14-DEV-with-postinstall-scripts.patch
index 892dc75079..2c10a750fa 100644
--- a/patch/kernel/cubox-dev/packaging-3.14-DEV-with-postinstall-scripts.patch
+++ b/patch/kernel/cubox-dev/packaging-3.14-DEV-with-postinstall-scripts.patch
@@ -182,7 +182,7 @@ index 152d4d2..9b30ad2 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/cubox-next/packaging-4.x-NEXT-with-postinstall-scripts.patch b/patch/kernel/cubox-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
index 5ae3765341..47cb82de4e 100644
--- a/patch/kernel/cubox-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
+++ b/patch/kernel/cubox-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/marvell-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/marvell-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
index 524b27e782..ed6799e1b2 100644
--- a/patch/kernel/marvell-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/marvell-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
@@ -241,7 +241,7 @@ index 3001ec5..dc76d3c
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/marvell-next/packaging-4.x-NEXT-with-postinstall-scripts.patch b/patch/kernel/marvell-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
index 5ae3765341..47cb82de4e 100644
--- a/patch/kernel/marvell-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
+++ b/patch/kernel/marvell-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/neo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/neo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
index c70c2d6841..d75fd7adcc 100644
--- a/patch/kernel/neo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/neo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
@@ -182,7 +182,7 @@ index 152d4d2..9b30ad2 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/odroidc1-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/odroidc1-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
index 524b27e782..ed6799e1b2 100644
--- a/patch/kernel/odroidc1-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/odroidc1-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
@@ -241,7 +241,7 @@ index 3001ec5..dc76d3c
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/odroidc2-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/odroidc2-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
index c70c2d6841..d75fd7adcc 100644
--- a/patch/kernel/odroidc2-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/odroidc2-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
@@ -182,7 +182,7 @@ index 152d4d2..9b30ad2 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/odroidxu4-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/odroidxu4-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
index 524b27e782..ed6799e1b2 100644
--- a/patch/kernel/odroidxu4-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/odroidxu4-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
@@ -241,7 +241,7 @@ index 3001ec5..dc76d3c
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/odroidxu4-next/packaging-4.x-NEXT-with-postinstall-scripts.patch b/patch/kernel/odroidxu4-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
index ab112ece43..b3bd7cc2f3 100644
--- a/patch/kernel/odroidxu4-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
+++ b/patch/kernel/odroidxu4-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 88dbf23..8fb7611 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/pine64-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/pine64-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
index 8e2993fb51..8360240a18 100644
--- a/patch/kernel/pine64-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/pine64-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
@@ -221,7 +221,7 @@ index 3001ec5..04a6afb
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/s500-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/s500-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
index 524b27e782..ed6799e1b2 100644
--- a/patch/kernel/s500-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/s500-default/packaging-3.10-DEFAULT-with-postinstall-scripts.patch
@@ -241,7 +241,7 @@ index 3001ec5..dc76d3c
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun4i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/sun4i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
index af1f68248e..1256ebdbd4 100644
--- a/patch/kernel/sun4i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/sun4i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
@@ -229,7 +229,7 @@ index ed7ccdc..bf30624 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun5i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/sun5i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
index af1f68248e..1256ebdbd4 100644
--- a/patch/kernel/sun5i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/sun5i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
@@ -229,7 +229,7 @@ index ed7ccdc..bf30624 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun7i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/sun7i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
index af1f68248e..1256ebdbd4 100644
--- a/patch/kernel/sun7i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/sun7i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
@@ -229,7 +229,7 @@ index ed7ccdc..bf30624 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun8i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/sun8i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
index a318772c82..20f9c04dd4 100644
--- a/patch/kernel/sun8i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/sun8i-default/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
@@ -229,7 +229,7 @@ index ed7ccdc..bf30624 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun8i-dev/packaging-4.x-DEV-with-postinstall-scripts.patch b/patch/kernel/sun8i-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
index 4b9ae02ffb..6ed3676dde 100644
--- a/patch/kernel/sun8i-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
+++ b/patch/kernel/sun8i-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sun8i-old/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/sun8i-old/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
index ccfef7b174..98f0a26d62 100644
--- a/patch/kernel/sun8i-old/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/sun8i-old/packaging-3.4.x-DEFAULT-with-postinstall-scripts.patch
@@ -229,7 +229,7 @@ index ed7ccdc..bf30624 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sunxi-dev/packaging-4.x-DEV-with-postinstall-scripts.patch b/patch/kernel/sunxi-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
index 4b9ae02ffb..6ed3676dde 100644
--- a/patch/kernel/sunxi-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
+++ b/patch/kernel/sunxi-dev/packaging-4.x-DEV-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/sunxi-next/packaging-4.x-NEXT-with-postinstall-scripts.patch b/patch/kernel/sunxi-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
index ea04b7f411..5034e76e30 100644
--- a/patch/kernel/sunxi-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
+++ b/patch/kernel/sunxi-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/udoo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch b/patch/kernel/udoo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
index c70c2d6841..d75fd7adcc 100644
--- a/patch/kernel/udoo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
+++ b/patch/kernel/udoo-default/packaging-3.14-DEFAULT-with-postinstall-scripts.patch
@@ -182,7 +182,7 @@ index 152d4d2..9b30ad2 100644
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi
diff --git a/patch/kernel/udoo-next/packaging-4.x-NEXT-with-postinstall-scripts.patch b/patch/kernel/udoo-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
index 5ae3765341..47cb82de4e 100644
--- a/patch/kernel/udoo-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
+++ b/patch/kernel/udoo-next/packaging-4.x-NEXT-with-postinstall-scripts.patch
@@ -134,7 +134,7 @@ index 6c3b038..cc9b3c0 100755
 +
 +for file in /dev/* ; do
 +	CURRENT_DEVICE=\$(printf "%d:%d" \$(stat --printf="0x%t 0x%T" \$file))
-+	if [ \$CURRENT_DEVICE = \$boot_device ]; then
++	if [[ "\$CURRENT_DEVICE" = "\$boot_device" ]]; then
 +		boot_partition=\$file
 +		break;
 +	fi