diff --git a/debian/chroot.mount b/debian/chroot.mount
index 74bb0be..90c7db2 100755
--- a/debian/chroot.mount
+++ b/debian/chroot.mount
@@ -1,6 +1,16 @@
 #!/bin/sh
 
-# Vars
+# Vars {{{
+[ -z "${DEBUG}" ] && readonly DEBUG=0
+## Export DEBUG for sub-script
+export DEBUG
+
+## Colors
+readonly PURPLE='\033[1;35m'
+readonly RED='\033[0;31m'
+readonly RESET='\033[0m'
+readonly COLOR_DEBUG="${PURPLE}"
+
 ## Define the hard drive to use
 if [ -b '/dev/sda' ]; then
 	hdd="/dev/sda"
@@ -8,20 +18,33 @@ else
 	printf '%b\n' "Please check the hard drive to use"
 	exit 0
 fi
+# }}}
 
 ## Dependencies {{{
 apt update
 apt install aptitude btrfs-progs bzip2 cryptsetup debconf-i18n dialog dmsetup htop ipcalc isc-dhcp-client isc-dhcp-common locales lvm2 openssh-server pciutils tmux vim-nox wget zsh
 ## }}}
 
-## If empty, the script will try to get one with nslookup
-new_hostname=""
+debug_message() {                                               # {{{
+
+	local_message="${1}"
+
+	## Print message if DEBUG is enable (=0)
+	[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME}: ${local_message}"
+
+	return 0
+}
+# }}}
+
 ## Try to guess the VG name by using the last VG detected
 vgname=$(vgdisplay --short | tail -n 1 | sed 's/.*"\(.*\)" .*/\1/')
 ## If the script should create extra volume (eg. backup, virt, Proxmox,…)
 manage_extra_lv=0
 ## Is LUKS {{{
-if blkid | grep "${hdd}.*crypto_LUKS"; then
+
+if blkid | grep -q -- "${hdd}.*crypto_LUKS"; then
+	debug_message "is_luks − \
+Luks seems available on ${hdd} device."
 	manage_luks=0
 	## You need to set a new passphrase after the installation or at least change this one
 	luks_passphrase="generic key"
@@ -29,6 +52,8 @@ if blkid | grep "${hdd}.*crypto_LUKS"; then
 	luks_pv_name=$(basename "${hdd}"2_crypt)
 else
 	manage_luks=1
+	debug_message "is_luks − \
+No Luks system on ${hdd} device."
 fi
 ## }}}
 ## Open LUKS system {{{
@@ -37,6 +62,8 @@ if [ "${manage_luks}" -eq 0 ]; then
 	rm -f -- "${luks_key_file}" && printf '%b' "${luks_passphrase}" > "${luks_key_file}"
 	### If the volume is not already opened
 	if [ ! -h /dev/mapper/"${luks_pv_name}" ]; then
+		debug_message "open_luks − \
+Try to open Luks on ${luks_pv_name} − ${hdd}2"
 		### Open LUKS system
 		cryptsetup luksOpen "${hdd}"2 "${luks_pv_name}" --key-file "${luks_key_file}" || exit 2
 	fi
@@ -46,24 +73,14 @@ fi
 root_fs_type=$(lsblk -f /dev/mapper/"${vgname}"-root | awk '/root/ { print $2 }')
 if [ "${root_fs_type}" = "btrfs" ]; then
 	manage_btrfs=0
+	debug_message "is_btrfs − \
+The root seems to be in btrfs."
 else
 	manage_btrfs=1
+	debug_message "is_btrfs − \
+No btrfs detected."
 fi
 ## }}}
-## Colors definition {{{
-BLACK='\033[49;30m'
-BLACKB='\033[49;90m'
-RED='\033[0;31m'
-REDB='\033[1;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[0;33m'
-BLUE='\033[94;49m'
-MAGENTA='\033[0;35m'
-CYAN='\033[36;49m'
-WHITE='\033[0;37m'
-BOLD='\033[1m'
-RESET='\033[0m'
-## }}}
 
 ## Mount the system {{{
 ### Root