sudo -i
LOGIN="lex"
WRAPPED_PASSPHRASE_FILE="/home/$LOGIN/.ecryptfs/wrapped-passphrase"
ecryptfs-unwrap-passphrase "$WRAPPED_PASSPHRASE_FILE"
PASSPHRASE="77777a6817c633fd8db94ec61ac7777d"
printf "%s" "$PASSPHRASE" | ecryptfs-add-passphrase --fnek -
MOUNT_PASSPHRASE_SIG_FILE="/home/.ecryptfs/$LOGIN/.ecryptfs/Private.sig"
ECRYPTFS_SIG="$(sed -n 1p $MOUNT_PASSPHRASE_SIG_FILE)"
ECRYPTFS_FNEK_SIG="$(sed -n 2p $MOUNT_PASSPHRASE_SIG_FILE)"
mount.ecryptfs "/home/.ecryptfs/$LOGIN/.Private" "/mnt" \
    -o ecryptfs_passthrough=n,\
    ecryptfs_cipher=aes,\
    ecryptfs_key_bytes=16,\
    ecryptfs_enable_filename_crypto=y,\
    ecryptfs_sig="$ECRYPTFS_SIG",\
    ecryptfs_fnek_sig="$ECRYPTFS_FNEK_SIG",\
    passphrase_passwd="$PASSPHRASE"