diff --git a/wrimg.sh b/wrimg.sh
index 15dcedc..30b2331 100755
--- a/wrimg.sh
+++ b/wrimg.sh
@@ -86,20 +86,20 @@ write_partition() {
   fi
 
   echo "Copying ${1}..."
-  sudo umount /dev/${DEVICE}${2}
+  sudo umount /dev/${DEVICE}${2} 2>/dev/null || true
   sudo dd if=${ANDROID_PRODUCT_OUT}/${1}.img of=/dev/${DEVICE}${2} bs=1M
 }
 
 wipe_userdata() {
   echo "Creating userdata..."
-  sudo umount /dev/${DEVICE}5
+  sudo umount /dev/${DEVICE}5 2>/dev/null || true
   sudo wipefs -a /dev/${DEVICE}5
   sudo mkfs.ext4 /dev/${DEVICE}5 -I 512 -L userdata
 }
 
 wipe_metadata() {
   echo "Creating metadata..."
-  sudo umount /dev/${DEVICE}4
+  sudo umount /dev/${DEVICE}4 2>/dev/null || true
   sudo wipefs -a /dev/${DEVICE}4
   sudo mkfs.ext4 /dev/${DEVICE}4 -I 512 -L metadata
 }