Ubuntu install with encrypted ZFS /home and encrypted /boot and / LUKS

Based on https://help.ubuntu.com/community/Full_Disk_Encryption_Howto_2019

Usage

1. Boot into your .iso - choose 'Try'
2. Clone repository
3. Adjust variables in ubuntu-common.sh
4. ./pre-install-partition.sh && ./pre-install.sh
   • The pre-install.sh script will keep waiting for the install target to appear
5. Start Installation as usual
   • Choose Manual partitioning
     • /dev/mapper/LUKS_BOOT --> ext4, MountPoint /boot
     • /dev/mapper/ubuntu--vg-root --> w/e you like, MountPoint /
     • /dev/mapper/ubuntu--vg-swap_1 --> swap area
   • As soon as /target appears the previous script will exit normally
   • You will end up with an encrypted LUKS1 /boot
   • Encrypted LUKS2 / and swap-space
   • An empty partition to be used for ZFS
6. After install select 'Continue Testing'
7. ./post-install.sh
   • This sets up your LUKS installation so you only have to enter your password once by generating a random keyfile saved in /etc/luks/boot_os.keyfile and adding to the LVM LUKS partition
8. Reboot
9. change to a console and login as user a) enable root account by setting a password sudo passwd b) logout, login as root
10. Clone repository again
11. Adjust variable for $DEV in ubuntu-common.sh
12. Execute ./first-boot.sh
13. Log back in as user
    • Your /home is now on a ZFS dataset

Misc

• Tested on Ubuntu 20.10 and Kubuntu 20.10
• Hibernate works just fine (technically, it does for me)
  • You might have to re-enable hibernation in KDE/GNOME as Ubuntu disables it globally