Ubuntu – /dev/sda2 contains a filesystem with error after partitioning (updated)

Probably the simplest way to do this is to use an "Encrypted Private" directory. This will make ~/Private encrypted, and you can move trees into there and symlink to them (for firefox, etc). It is very easy to set up:

sudo apt-get install ecryptfs-utils
ecryptfs-setup-private

Now just log out of your session and back in, and you'll have an encrypted ~/Private directory automounted. You can move things into it like this:

cd ~
mv .mozilla Private/
ln -s Private/.mozilla .

For more details, see "man ecryptfs-setup-private", or read the manpage online

Lucky you! I just had the same problem and wrote a script that will facilitate mounting ecryptfs Folders with FNEK.

sudo su -

Then open nano/vim/your editor of choice and create a file ecryptfs-fnek-helper.sh with the following contents:

#!/bin/bash

# Thanks to https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/455709
# 

echo "Where is the /home with the .ecryptfs mounted? (default=/mnt/home)"
read home_ecryptfs
if [ -z "$home_ecryptfs" ]; then
    home_ecryptfs=/mnt/home
fi
home_ecryptfs=$home_ecryptfs/.ecryptfs

echo "Whose encrypted home would you like to mount?"
read user
if [ -z "$user" ]; then
    echo "You have to enter a user!"
    exit;
fi

echo "What is the user's password?"
read -s password
if [ -z "$password" ]; then
    echo "You have to enter a password!"
    exit;
fi

echo "Where would you like to mount it? (Default: /mnt/[username])"
read target
if [ -z "$target" ]; then
    target=/mnt/$user
fi
target=$target/
mkdir -p $target

wrapped=$home_ecryptfs/$user/.ecryptfs/wrapped-passphrase
sig=$home_ecryptfs/$user/.ecryptfs/Private.sig
private=$home_ecryptfs/$user/.Private/

echo I will be mounting $private into $target.

echo "Clearing the keyring."
keyctl clear @u
keyctl list @u

echo "Unwrapping passphrase and inserting it into key:"
printf "%s" $password | ecryptfs-insert-wrapped-passphrase-into-keyring $wrapped -

keyctl list @u

echo -e "\e[0;92mPassphrase:"
echo -e '\e[1;92m'`printf "%s" $password | ecryptfs-unwrap-passphrase $wrapped - `'\e[0m'
echo -e "\e[0;96mFilename Encryption Key (FNEK) Signature:"
echo -e '\e[1;96m'`tail -n1 $sig`'\e[0m'
echo -e "Mounting now! Be sure to enable FNEK!"
mount.ecryptfs $private $target -o ecryptfs_cipher=aes,ecryptfs_key_bytes=16,key=passphrase

This will unwrap your passphrase and add it to the keyring. It will also display the passhprase and the correct FNEK signature, so you can copy/paste them when prompted by mount.ecryptfs.

Make the file executable and run it while still in su:

chmod +x ecryptfs-fnek-helper.sh
./ecryptfs-fnek-helper.sh