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+# install ubuntu full ZFS
+Boot the Ubuntu 20.04 Desktop installer/live CD.
+Click the “Try Ubuntu” button.
+launch a terminal
+
+~~~
+$ sudo su
+# apt install ssh
+~~~
+
+set a passwd to root to permit remote ssh
+
+~~~
+# passwd
+New password :
+Retype new passord :
+passwd: password updated successfully
+~~~
+
+Edit */etc/ssh/sshd_config* to Enable PermitRootLogin change *prohibit-password* to *yes* like bellow.
+
+~~~{.shell}
+#PermitRootLogin prohibit-password
+PermitRootLogin yes
+~~~
+
+~~~
+service ssh restart
+~~~
+
+find yout IP with : *ip a*
+
+then connect remotely with : *ssh*
+# update zsys-setup 
+to enable zfs encryption and create a swap partition right sized for hibernation.
+
+## enable zfs encyption on rpool
+
+bpool remain unencrypt.
+
+Search for “zpool create”, and make sure you have found the create command that has “rpool” on the last line.
+Before the “zpool create” insert: echo MYPASSWORD |
+Before the last line of the command insert these lines:
+
+~~~{.cpp}
+        -O recordsize=1M \
+        -O encryption=aes-256-gcm \
+        -O keylocation=prompt \
+        -O keyformat=passphrase \
+~~~
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