** Changed in: ubiquity (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1857398
Title:
ubiquity should support encryption by default with zfsroot, with users
able to opt in to running change-key after install
Status in ubiquity package in Ubuntu:
Won't Fix
Status in zfs-linux package in Ubuntu:
Confirmed
Bug description:
zfs supports built-in encryption support, but the decision of whether
a pool is encrypted or not must be made at pool creation time; it is
possible to add encrypted datasets on top of an unencrypted pool but
it is not possible to do an online change of a dataset (or a whole
pool) to toggle encryption.
We should therefore always install with encryption enabled on zfs
systems, with a non-secret key by default, and allow the user to use
'zfs change-key -o keylocation=prompt' after install to take ownership
of the encryption and upgrade the security.
This is also the simplest way to allow users to avoid having to choose
between the security of full-disk encryption, and the advanced
filesystem features of zfs since it requires no additional UX work in
ubiquity.
We should make sure that
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857040 is fixed
first in the kernel so that enabling zfs encryption does not impose an
unreasonable performance penalty.
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