diff --git a/IMG/cpio/ventoy/hook/debian/truenas-disk.sh b/IMG/cpio/ventoy/hook/debian/truenas-disk.sh
new file mode 100644
index 00000000..3a5aaddc
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/debian/truenas-disk.sh
@@ -0,0 +1,52 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+. /ventoy/hook/ventoy-hook-lib.sh
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+
+ventoy_run_fuse() {
+    vtlog "ventoy_run_fuse $*"
+
+    mkdir -p $VTOY_PATH/mnt/fuse
+
+    vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table
+    vtoy_fuse_iso -f $VTOY_PATH/ventoy_dm_table -m $VTOY_PATH/mnt/fuse
+
+    mount -t iso9660  $VTOY_PATH/mnt/fuse/ventoy.iso    $VTOY_PATH/mnt/iso
+}
+
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+ventoy_run_fuse $vtdiskname
+
+if [ -f /ventoy/autoinstall ]; then
+    sh /ventoy/hook/default/auto_install_varexp.sh  /ventoy/autoinstall
+fi
diff --git a/IMG/cpio/ventoy/hook/debian/truenas-hook.sh b/IMG/cpio/ventoy/hook/debian/truenas-hook.sh
new file mode 100644
index 00000000..6a56a8e6
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/debian/truenas-hook.sh
@@ -0,0 +1,26 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+if [ -e /init ] && $GREP -q '^mountroot$' /init; then
+    echo "Here before mountroot ..." >> $VTLOG    
+    $SED  "/^mountroot$/i\\$BUSYBOX_PATH/sh $VTOY_PATH/hook/debian/truenas-disk.sh"  -i /init
+    $SED  "/^mountroot$/i\\export LIVEMEDIA=/dev/mapper/ventoy"  -i /init
+    $SED  "/^mountroot$/i\\export LIVE_MEDIA=/dev/mapper/ventoy"  -i /init    
+    $SED  "/^mountroot$/i\\export FROMISO=$VTOY_PATH/mnt/fuse/ventoy.iso"  -i /init    
+fi
diff --git a/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh b/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
index a25ccac1..d940e0d3 100644
--- a/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
+++ b/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
@@ -114,6 +114,10 @@ ventoy_get_debian_distro() {
         echo 'devuan'; return
     fi
     
+    if $GREP -q 'truenas' /proc/version; then
+        echo 'truenas'; return
+    fi
+    
     echo 'default'
 }