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+source : [Linsomniac's Articles - Encrypting ZFS on Ubuntu 20.04](https://linsomniac.gitlab.io/post/2020-04-09-ubuntu-2004-encrypted-zfs/)
+# encrypt - Unbuntu 20.04 full ZFS install
+Here we are going to install Ubuntu 20.04 in **almost** full zfs updating **zsys-setup** to permit **zfs encryption**.  Read bellow articles to understand why 2 differerent pools and full implementation.
+
+* [ZFS focus on Ubuntu 20.04 LTS: what’s new?](https://didrocks.fr/2020/05/21/zfs-focus-on-ubuntu-20.04-lts-whats-new/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys general presentation](https://didrocks.fr/2020/05/26/zfs-focus-on-ubuntu-20.04-lts-zsys-general-presentation/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys sate management](https://didrocks.fr/2020/05/28/zfs-focus-on-ubuntu-20.04-lts-zsys-general-principle-on-state-management/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys commands for state management](https://didrocks.fr/2020/06/02/zfs-focus-on-ubuntu-20.04-lts-zsys-commands-for-state-management/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys state collection](https://didrocks.fr/2020/06/04/zfs-focus-on-ubuntu-20.04-lts-zsys-state-collection/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys for system administrators](https://didrocks.fr/2020/06/09/zfs-focus-on-ubuntu-20.04-lts-zsys-for-system-administrators/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys partition layout](https://didrocks.fr/2020/06/11/zfs-focus-on-ubuntu-20.04-lts-zsys-partition-layout/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys dataset layout](https://didrocks.fr/2020/06/16/zfs-focus-on-ubuntu-20.04-lts-zsys-dataset-layout/)
+* [ZFS focus on Ubuntu 20.04 LTS: ZSys properties on ZFS datasets](https://didrocks.fr/2020/06/19/zfs-focus-on-ubuntu-20.04-lts-zsys-properties-on-zfs-datasets/)
+
+## initial boot and ssh
+Boot the Ubuntu 20.04 Desktop installer/live CD.  
+Click the “Try Ubuntu” button.  
+launch a terminal.   
+
+set a passwd to root to permit remote ssh
+
+~~~
+$ sudo su
+## passwd
+New password :
+Retype new passord :
+passwd: password updated successfully
+~~~
+
+Install ssh to simplfy configuration edit.
+
+~~~
+## apt install ssh
+~~~
+
+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 on rpool
+
+The zsys-setup script is here : /usr/share/ubiquity/zsys-setup  
+
+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 \
+~~~
+
+## swap
+
+you may be interrested if you are on a laptop in : [right fit swap for laptop hibernation Ubuntu 20.04 full ZFS install](right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install)
+
+## start installation
+
+Run ubiquity to start the installer and install as normal, selecting “Use entire disk” and the option to use ZFS.
+
+## questions to be solves
+
+* what happen if zpool passwd is not given at boot shutdown ?
+* find a way to shut it down pass a delay