diff --git a/README.md b/README.md
index ac506bf..b89e67f 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,13 @@ Make a live CD Debian with dwagent (https://www.dwservice.net/)
 
 ### Install
 ```
-sudo apt install debootstrap xorriso live-build syslinux squashfs-tools isolinux
+sudo apt install debootstrap xorriso live-build syslinux squashfs-tools isolinux grub-efi-amd64-bin
 ```
+```
+cp config.dist config
+```
+Change `livework` and `os_version` to your needs.  
+
 ### Make
 ```
 sudo ./make_iso.sh
diff --git a/config.dist b/config.dist
index b0bc358..f76f3d8 100755
--- a/config.dist
+++ b/config.dist
@@ -1,6 +1,6 @@
 #!/bin/bash
 os_version="buster"
-livework="./livework/"
+livework="/opt/livework/"
 repositories="http://ftp.debian.org/debian/"
 dist_name="dwlive"
 iso_name="dwlive-Debian-amd64.iso"
diff --git a/make_iso.sh b/make_iso.sh
index eac859a..c915c7d 100755
--- a/make_iso.sh
+++ b/make_iso.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # author : Oros
-# 2020-11-14
+# 2020-12-29
 #
 # This script create a light Debian ISO which include dwagent (https://www.dwservice.net/)
 
@@ -22,22 +22,6 @@ if [ "$EUID" -ne 0 ]; then
 	exit 1
 fi
 
-if [ ! `which debootstrap` ]; then
-	apt-get install -y debootstrap
-fi
-if [ ! `which xorriso` ]; then
-	apt-get install -y xorriso
-fi
-if [ ! `which live-build` ]; then
-	apt-get install -y live-build
-fi
-if [ ! `which syslinux` ]; then
-	apt-get install -y syslinux
-fi
-if [ ! `which mksquashfs` ]; then
-	apt-get install -y squashfs-tools
-fi
-
 home_project=$(pwd)
 chroot_files="$home_project/chroot_files"
 iso_files="$home_project/iso_files"
@@ -118,3 +102,4 @@ xorriso \
     "${livework}/iso"
 
 echo "ISO build in ${home_project}/${iso_name}"
+sudo chown $USER: "${home_project}/${iso_name}"