diff --git a/README.md b/README.md
index 152a69d..535ee5e 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ Use some bootloaders files provide by :
     * reboot.c32
     * vesamenu.c32
 
-To get those files from the packages of APT repositories :
+To get those files from the packages of your repositories :
 ``` sh
 mkdir -p temp_pxe_files
 cd temp_pxe_files
@@ -100,7 +100,7 @@ Preseeding provides a way to set answers to questions asked by the Debian-Instal
 |-----------|-------------|------------------------|------------------------------------------------------------------------|
 | /dev/sda1 | /boot       | 200 - 250 Mb           | Bootloader (Grub)                                                      |
 | /dev/sda2 | LVM         | 16 Gb - 100%           | Physical Volume for LVM                                                |
-| lv_root   | /           | 1 - 2 Gb               | root partition                                                         |
+| lv_root   | /           | 1 - 2 Gb               | Root partition                                                         |
 | lv_usr    | /usr        | 4 - 10 Gb              | Non-essential system resources (binaries, libraries, documentations,…) |
 | lv_var    | /var        | 4 - 8 Gb               | Variable files (databases, cache, log,…)                               |
 | lv_tmp    | /tmp        | 1 - 2 Gb               | Temporary files cleaned between system reboots                         |
@@ -120,11 +120,11 @@ Preseeding provides a way to set answers to questions asked by the Debian-Instal
   * Define ZSH as the default shell.
   * Permit root login via SSH with it's password.
   * Download and extract a _latecommand_ archive from [this repository][debian latecommand description].
-  * Run the script from
+  * Run the script from this archive.
 
 ------
 
-lv_free - /mnt/free
+**lv_free - /mnt/free**
 : The preseed's partitionning need to allocate all the disk space. If it's not define, it will put it in the last defined partition all extra free space. So **lv_free** is a temporary LV that you can destroy and use the space to resize any other LV.
 
 #### Specific configurations
@@ -148,15 +148,21 @@ See the [scripts's README.md][scripts readme.md] file for more informations.
   * Clone the repository with https URL or with SSH to **/var/lib/tftpboot**.
   * Download the last archive : `wget https://git.ipr.univ-rennes1.fr/cellinfo/tftpboot/archive/master.tar.gz`
 * Install a TFTP server (`tftpd-hpa` package for Debian's based systems or `tftp-server` for Redhat's based systems).
-* Start the tftpd's service :
-  * `sudo service tftpd-hpa start`
-  * `sudo systemctl start tftpd-hpa`
-* You can test if the TFTP server provide the files with a TFTP client (`tftp-hpa`) by downloading a file with the command :
-  * `tftp $IP.SRV.TFTP -c get README.md /tmp/README.md_from_tftpd_server`
-* Set your IP in some files instead of the default one *129.20.27.239* :
-  * [debian menu.cfg][debian menu.cfg] to be able to load the preseed files (**preseed/url=tftp://SRV.IP.AD.DR/**)
-  * [Jessie preseed file][preseed jessie] to download the postinstall script from your TFTPD server (**in-target /usr/bin/tftp SRV.IP.AD.DR**)
-  * [Wheezy preseed file][preseed wheezy] to download the postinstall script from your TFTPD server (**in-target /usr/bin/tftp SRV.IP.AD.DR**)
+  * Start the tftpd's service :
+    * `sudo service tftpd-hpa start`
+    * `sudo systemctl start tftpd-hpa`
+  * You can test if the TFTP server provide the files with a TFTP client (`tftp-hpa`) by downloading a file with the command : `tftp $IP.SRV.TFTP -c get README.md /tmp/README.md_from_tftpd_server`
+* Set your IP in some files instead of the default one _129.20.27.239_ :
+  * In configurations files to be able to call Debian's Preseed files or download squashfs filesystem (for Clonezilla, GParted,…): `sudo find config/ -iname "*.cfg" -type f -exec sed -i "s/129.20.27.239/111.222.333.444/g" {} \;`
+  * In Preseed files, to be able to download the late_command archive from your TFTPD server : `sudo find preseed/ -type f -exec sed -i "s/129.20.27.239/111.222.333.444/g" {} \;`
+  * In scripts to generate examples configuration files with the right IP address : `sudo find scripts/ -iname "*.sh" -type f -exec sed -i "s/129.20.27.239/111.222.333.444/g" {} \;`
+* Run scripts to download needed PXE files (see the [scripts's README.md][scripts readme.md] for more informations) :
+  * Debian : `sudo ./scripts/download_debian.sh`
+  * Debian's initrd with additionnals firmwares : `sudo ./scripts/make_debian_initrd_with_firmware.sh"`
+  * Ubuntu : `sudo ./scripts/download_ubuntu.sh`
+  * Diagnostic tools (Memtest86+, GParted Live,…) : `sudo ./scripts/download_diag_tools.sh`
+  * Clonezilla : `sudo ./scripts/download_clonezilla.sh`
+  * Generate the late_command archive : `cd scripts/ ; sudo tar czvf latecommand.tar.gz latecommand/`
 
 ## TODO
 * Add a tiny preseed file that could be loaded for a manual install.
@@ -165,7 +171,6 @@ See the [scripts's README.md][scripts readme.md] file for more informations.
 
 
 
-
 [main menu.cfg]: ./config/menu.cfg
 [debian menu.cfg]: ./config/debian/menu.cfg
 [preseed informations]: https://wiki.debian.org/DebianInstaller/Preseed