[Bug 1308530] Re: Cannot login after an upgrade from Saucy to Trusty with Ubiquity and encrypted home directory

[Tao Wang]

I might facing the same bug, but with different apparence.

Me too upgrade from 13.10 desktop to 14.04, 64-bit edition. However, I
didn't use ISO, I just followed the prompt asking for upgrade to 14.04.
My home directory is encrypted too.

And since it's just a 'do-release-upgrade', I haven't changed my
password.

After upgrade, I can logged in, however, the home directory is not
usable. I attached the screenshot for what I saw.

I tried switch the 'lightdm' to 'gdm', and it doesn't work.

I also tried use ssh to log in as my user, and guess what? Everything in
$HOME is accessible, it's been correctly decrypted and mounted.

So, I found a temporary workaround for this. Assume my username is 'bar'

1. Create another user 'foo';
2. After reboot, first log in as 'foo';
3. Open 'terminal', and run `ssh bar at localhost`;
4. Don't log out, just SWITCH to user 'bar', and log in;
5. All Home directory is accessible, somehow;


But why 'gdm' or 'lightdm' logged in cannot decrypt my home directory as 13.10?


** Attachment added: "Encrypted Home directory is not usable after upgrade to 14.04"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1308530/+attachment/4088750/+files/a.png

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https://bugs.launchpad.net/bugs/1308530

Title:
  Cannot login after an upgrade from Saucy to Trusty with Ubiquity and
  encrypted home directory

Status in Release Notes for Ubuntu:
  Fix Released
Status in “ubiquity” package in Ubuntu:
  Triaged

Bug description:
  Trusty Desktop amd64 20140415

  TEST CASE:
  1. Install Saucy Desktop with encrypted home
  2. Boot a Trusty ISO
  3. Select upgrade to Trusty
  4. Enter the same username and another password

  EXPECTED RESULT:
  User can log in

  ACTUAL RESULT
  User cannot login.
  If I boot to recovery mode and "sudo -i -u ubuntu" I get
  """
  $ sudo -i -u ubuntu
  open: No such file or directory
  Error locking counter
  """

  If I unlock the home directory with ecryptfs-mount-private I get:
  """
  $ ecryptfs-mount-private
  Enter your login passphrase:
  Inserted auth tok sig [XXXXXXX] into the user session keyring
  open: No such file or directory
  Error locking counter
  """

  But the home directory is not unlocked and mounted

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  Date: Wed Apr 16 14:59:42 2014
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  InstallationDate: Installed on 2014-04-16 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140415)
  ProcEnviron:
   SHELL=/bin/bash
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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