diff --git a/XPS-13-7390-2-in-1--.md b/XPS-13-7390-2-in-1--.md
index e832489..699f0eb 100644
--- a/XPS-13-7390-2-in-1--.md
+++ b/XPS-13-7390-2-in-1--.md
@@ -38,9 +38,9 @@ then connect remotely with : *ssh*
 # update zsys-setup 
 to enable zfs encryption and create a swap partition right sized for hibernation.
 
-SWAPSIZE=$(cat /proc/meminfo | grep MemTotal | awk -F' ' '{print $2}')
+## enable zfs encyption on rpool
 
-## enable zfs encyption
+bpool remain unencrypt.
 
 ~~~
 Boot the Ubuntu 20.04 Desktop installer/live CD.
@@ -61,17 +61,20 @@ Run ubiquity to start the installer and install as normal, selecting “Use enti
 ## create swap partition to permit Hibernate
 
 ~~~
-            # Convert to MiB to align the size on the size of a block                                                                                             
-    	SWAPVOLSIZE=$(( SWAPSIZE / 1024 / 1024 ))
-
-            prepare_target "${TARGET}"
-            SWAPVOLSIZE=$(( 32768 ))
-    	format_disk "${DISK}" "${PARTBASE}" "${PARTESP}" "${PARTBPOOL}" "${PARTRPOOL}" "${SWAPVOLSIZE}"
-            init_zfs "${TARGET}" "${DISK}${PARTBASE}${PARTBPOOL}" "${DISK}${PARTBASE}${PARTRPOOL}"
-    	init_system_partitions "${TARGET}" "${DISK}${PARTBASE}1" "${DISK}${PARTBASE}${PARTESP}"
+	# Convert to MiB to align the size on the size of a block
+	SWAPVOLSIZE=$(( SWAPSIZE / 1024 / 1024 ))
+    
+MEMSIZE=$(cat /proc/meminfo | grep MemTotal | awk -F' ' '{print $2}')
+SWAPVOLSIZE=$(( MEMSIZE / 1024 ))
 
+	prepare_target "${TARGET}"
+	format_disk "${DISK}" "${PARTBASE}" "${PARTESP}" "${PARTBPOOL}" "${PARTRPOOL}" "${SWAPVOLSIZE}"
+	init_zfs "${TARGET}" "${DISK}${PARTBASE}${PARTBPOOL}" "${DISK}${PARTBASE}${PARTRPOOL}"
+	init_system_partitions "${TARGET}" "${DISK}${PARTBASE}1" "${DISK}${PARTBASE}${PARTESP}"
 ~~~
 
+
+
 source : [Linsomniac's Articles - Encrypting ZFS on Ubuntu 20.04](https://linsomniac.gitlab.io/post/2020-04-09-ubuntu-2004-encrypted-zfs/)
 
 boot after press esc then F12