Post-installation configuration from live OS When installation is complete, don't reboot! Choose the option to "Continue Testing".Change the "Device for boot loader installation" to /dev/sdb, and continue with installation. the /boot partition must not be encrypted. Then manually assign the /dev/mapper/vg0-* partitions as you would like to have the configured. When you get to the "Installation type" portion of the install, choose the "Something else" option. sudo vgcreate vg0 /dev/mapper/CryptDisk.sudo dd if=/dev/zero of=/dev/mapper/CryptDisk bs=4M BEWARE, this could take a really long time! While not necessary, it is a good idea to fill your LUKS partition with zeros so that the partition, in an encrypted state, is filled with random data.sudo cryptsetup luksOpen /dev/sdb2 CryptDisk.sudo cryptsetup luksFormat -hash=sha512 -key-size=512 -cipher=aes-xts-plain64 -verify-passphrase /dev/sdb2.sdb2: LUKS partition (the rest of the disk).other partitions: existing OSs - we don't care about these.Partition the drive with your tool of choice: I used fdisk to set mine up on an msdos partition table as follows:.Let's assume you're installing to /dev/sdb. You want to setup LUKS and LVM while manually partitioning! I tested this on Ubuntu 16.04.2 / 18.04 / 20.04īoot Ubuntu from a Live OS and select the option to try Ubuntu without installing. UPDATE: I have created a script that will perform the following operations for you and more! All you have to do is run it from the Live OS before installation. The next steps are not intended for novice users. Even with 1G, make sure you remove old kernels from time to time. Otherwise, what is bound to happen is that you may forget to remove old kernels and /boot will fill up, and you'll have to deal with the pain of trying to remove old kernels from the system so that you can get apt or apt-get to work again.
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How to accomplish this with LVM and a single encrypted partition#įirst of all 128M is too small for boot! I use 1G. Thus, making unavailable the partitions that were configured for system installation. Lubuntu which now uses Calamares) because some of those installers go so far as to deactivate LVM partitions that they did not, themselves, configure in the pre-installation process.
CUSTOM INSTALL SYS FILE UPDATE
Update : This may not work with Ubuntu flavors that have moved away from the Ubiquity installer (eg.