After I put in the symlink for initctl into /bin path above and could log in, I 
ran into an issue where I was having odd errors like not authorized in the disk 
tool, and Network settings within UI were inaccessible, etc  This is beyond the 
other weird issues with the path stuff from above... I found an old bug here:
https://bugs.launchpad.net/ubuntu/+source/likewise-open/+bug/1162836

I had the same problem where after I finally logged in, my $PATH variable was a 
ways off from what the local user.  Per that bug, I updated  
/etc/pam.d/common-session and made the following change the line:
session sufficient      pam_lsass.so  
to:
session [success=ok default=ignore]     pam_lsass.s

After a reboot, my path was ok, and everything seems to be working as
normal again.  I am going to test removing the symlinks that were added,
as I suspect with the path fixed, they may not be needed. I  will report
back what I find.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1228079

Title:
  Login issue: Lightdm + LDAP + Kerberos

Status in “lightdm” package in Ubuntu:
  Confirmed

Bug description:
  lightdm 1.7.15-0ubuntu1, Ubuntu 13.10

  - Local users can login without problems on command line and LightDM
  - Kerberos/LDAP authenticated users can login on command line

  - Kerberos/LDAP authenticated users cannot login with LigthDM. If you
  provide a valid user/password the screen gets blank before you return
  to the login screen. The .xession-errors includes "/usr/sbin/lightdm-
  session: 5: exec: init: not found"

  - If you add init to the users path (e.g., ln -s /sbin/init /bin/init)
  the user does no longer return back to LightDM but gets a blank
  screen. Several errors related to "init" in the .xsession-errors.
  First of them is "init: Failed to spawn upstart-file-bridge main
  process: unable to execute: No such file or directory"

  .xession-errors for both setup attached to this bug report

  No problems with Ubuntu 12.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: lightdm 1.7.15-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-7.14-generic 3.11.1
  Uname: Linux 3.11.0-7-generic x86_64
  ApportVersion: 2.12.1-0ubuntu4
  Architecture: amd64
  Date: Fri Sep 20 12:21:13 2013
  InstallationDate: Installed on 2013-09-20 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130917)
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=de_DE
   TERM=xterm
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)

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