[Bug 1718658] Re: ecryptfs-mount-private fails to initialize ecryptfs keys

[Matt Palmer]

I just upgraded from 16.04 to 18.04 and I'm seeing the same/similar
issue.  I have the same messages in the log, and I have an encrypted
home folder.

When I *first* try to log in after a reboot, I get bounced back to the
login screen.  It then logs in on the second attempt (so far - but this
makes me nervous).  None of the fixes above have worked for me so far.

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https://bugs.launchpad.net/bugs/1718658

Title:
  ecryptfs-mount-private fails to initialize ecryptfs keys

Status in ecryptfs-utils package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  ecryptfs-mount-private fails to mount the ecryptfs after the 1st
  reboot after creating the ecryptfs by ecryptfs-setup-private.

  After the unsucessful attempt dmesg contains:

  [ 1265.695388] Could not find key with description: [<correct key ID>]
  [ 1265.695393] process_request_key_err: No key
  [ 1265.695394] Could not find valid key in user session keyring for sig specified in mount option: [<correct key ID>]
  [ 1265.695395] One or more global auth toks could not properly register; rc = [-2]
  [ 1265.695396] Error parsing options; rc = [-2]

  Note: The correct key ID has been replaced in the "<correct key ID>".

  I also accidentally found an workaround - just running ecrytpfs-
  manager and then the ecryptfs-mount-private (it does not ask for
  password for the second time and mounts the ecryptfs correctly):

  host:~$ ecryptfs-manager

  eCryptfs key management menu
  -------------------------------
  	1. Add passphrase key to keyring
  	2. Add public key to keyring
  	3. Generate new public/private keypair
  	4. Exit

  Make selection: 4
  host:~$ ls Private/
  Access-Your-Private-Data.desktop  README.txt
  host:~$ ecryptfs-mount-private 
  host:~$ ls Private/
  <ecryptfs content is present>

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