$ sudo apt-get install ecryptfs-utils cryptsetup
Reading package lists... Done
Building dependency tree
Reading state information... Done
cryptsetup is already the newest version.
ecryptfs-utils is already the newest version.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

$ sudo ecryptfs-migrate-home -u <username>
INFO:  Checking disk space, this may take a few moments.  Please be patient.
INFO:  Checking for open files in /home/<username>
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/112/gvfs
      Output information may be incomplete.
Enter your login passphrase [<username>]:

************************************************************************
YOU SHOULD RECORD YOUR MOUNT PASSPHRASE AND STORE IT IN A SAFE LOCATION.
  ecryptfs-unwrap-passphrase ~/.ecryptfs/wrapped-passphrase
THIS WILL BE REQUIRED IF YOU NEED TO RECOVER YOUR DATA AT A LATER TIME.
************************************************************************


Done configuring.

chown: cannot access ‘/dev/shm/.ecryptfs-<username>’: No such file or directory
mount: No such file or directory
ERROR:  Could not mount
$