diff --git a/Makefile b/Makefile
index 9383282..7403716 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@
 ASM=nasm
 LD=ld
 ASMFLAGS=-f elf64
-LDFLAGS= -melf_x86_64
+LDFLAGS=-melf_x86_64
 
 #Folders
 MBRDIR=boot/grub
diff --git a/boot/grub/grub-install.sh b/boot/grub/grub-install.sh
index 44d591f..cd76028 100755
--- a/boot/grub/grub-install.sh
+++ b/boot/grub/grub-install.sh
@@ -38,6 +38,10 @@ sudo losetup /dev/loop1 $1 -o 1048576 > /dev/null #mounting the logical partitio
 
 echo ${CL2}[grub-install.sh]${NC} Mounting volume... 		\(mount\)${CL3}
 ## Mount
+if [ -e $2/boot ] 
+then
+	sudo umount $2 > /dev/null
+fi
 sudo mount /dev/loop1 $2 > /dev/null
 
 echo ${CL2}[grub-install.sh]${NC} Installing grub... 		\(grub-install\)${CL3}
diff --git a/boot/grub/umount.sh b/boot/grub/umount.sh
index cf8035b..0948aba 100755
--- a/boot/grub/umount.sh
+++ b/boot/grub/umount.sh
@@ -29,8 +29,8 @@ CL3='\033[0m'
 NC='\033[1;37m'
 
 set -e #exit if error
-#sleep 3
 sync
+sleep 1
 echo ${CL2}[umount.sh]${NC} Unmounting volume... 		\(umount\)${CL3}
 sudo umount $1
 echo ${CL2}[umount.sh]${NC} Unmounting image... 		\(losetup\)${CL3}