I don't want to use Guided-use entire disk and set up encrypted LVM because I need change encryption type and I don't need /swap
But it types
You have selected the root file system to be stored on an encrypted partition. This feature requires a separate /boot partition on which the kernel and initrd can be stored. You should go back and set up a /boot partition.
Is there a way to encrypt boot as well? Or there is no sense make /boot encrypted?
Also, I tried to partition them in other way and when I got to stage: Installing GRUB, I was getting errors