[Bug 1332988] [NEW] kdb5_util create and krb5_newrealm fail due to existing /var/lib/krb5kdc/principal/wrong error message

[Karl-Philipp Richter]

Public bug reported:

The invokation of both

    LANG=C kdb5_util -r example.com create # with 'example.com' != `hostname`
    # and
    LANG=C krb5_newrealm

fail with `kdb5_util: File exists while creating database
'/etc/krb5kdc/principal'` (both with complex password `KPZp*4=pzx^ZGnI-
dacjWaOO2` and simple password `a`.  Output before is

    This script should be run on the master KDC/admin server to initialize
    a Kerberos realm.  It will ask you to type in a master key password.
    This password will be used to generate a key that is stored in
    /etc/krb5kdc/stash.  You should try to remember this password, but it
    is much more important that it be a strong password than that it be
    remembered.  However, if you lose the password and /etc/krb5kdc/stash,
    you cannot decrypt your Kerberos database.
    Loading random data
    Initializing database '/var/lib/krb5kdc/principal' for realm 'richter-local.de',
    master key name 'K/M at richter-local.de'
    You will be prompted for the database Master Password.
    It is important that you NOT FORGET this password.
    Enter KDC database master key:
    Re-enter KDC database master key to verify:

Fixing the issue by invoking

    kdb5_util -r example.com -m destroy -f

before repeating commands above isn't possible due to error `kdb5_util:
No such entry in the database while retrieving master entry`, `mv
/var/lib/krb5kdc/principal /var/lib/krb5kdc/principal.bk1` doesn't help.

After reading the man pages for `kdb5_util` and `krb5_newrealm` it is
unclear what is acutally missing and/or errornous. At least I don't see
a reason for such a low quality error message.

== Ubuntu related ==
The state should be reset by invoking `apt-get purge krb5-kdc krb5-admin-server` which isn't the case.

** Affects: krb5 (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  The invokation of both
  
-     LANG=C kdb5_util -r example.com create # with 'example.com' != `hostname`
-     # and
-     LANG=C krb5_newrealm
+     LANG=C kdb5_util -r example.com create # with 'example.com' != `hostname`
+     # and
+     LANG=C krb5_newrealm
  
  fail with `kdb5_util: File exists while creating database
  '/etc/krb5kdc/principal'` (both with complex password `KPZp*4=pzx^ZGnI-
  dacjWaOO2` and simple password `a`.  Output before is
  
-     This script should be run on the master KDC/admin server to initialize
-     a Kerberos realm.  It will ask you to type in a master key password.
-     This password will be used to generate a key that is stored in
-     /etc/krb5kdc/stash.  You should try to remember this password, but it
-     is much more important that it be a strong password than that it be
-     remembered.  However, if you lose the password and /etc/krb5kdc/stash,
-     you cannot decrypt your Kerberos database.
-     Loading random data
-     Initializing database '/var/lib/krb5kdc/principal' for realm 'richter-local.de',
-     master key name 'K/M at richter-local.de'
-     You will be prompted for the database Master Password.
-     It is important that you NOT FORGET this password.
-     Enter KDC database master key: 
-     Re-enter KDC database master key to verify:
+     This script should be run on the master KDC/admin server to initialize
+     a Kerberos realm.  It will ask you to type in a master key password.
+     This password will be used to generate a key that is stored in
+     /etc/krb5kdc/stash.  You should try to remember this password, but it
+     is much more important that it be a strong password than that it be
+     remembered.  However, if you lose the password and /etc/krb5kdc/stash,
+     you cannot decrypt your Kerberos database.
+     Loading random data
+     Initializing database '/var/lib/krb5kdc/principal' for realm 'richter-local.de',
+     master key name 'K/M at richter-local.de'
+     You will be prompted for the database Master Password.
+     It is important that you NOT FORGET this password.
+     Enter KDC database master key:
+     Re-enter KDC database master key to verify:
  
  Fixing the issue by invoking
  
-     kdb5_util -r example.com -m destroy -f
+     kdb5_util -r example.com -m destroy -f
  
  before repeating commands above isn't possible due to error `kdb5_util:
  No such entry in the database while retrieving master entry`, `mv
  /var/lib/krb5kdc/principal /var/lib/krb5kdc/principal.bk1` doesn't help.
  
  After reading the man pages for `kdb5_util` and `krb5_newrealm` it is
  unclear what is acutally missing and/or errornous. At least I don't see
  a reason for such a low quality error message.
+ 
+ == Ubuntu related ==
+ The state should be reset by invoking `apt-get purge krb5-kdc krb5-admin-server` which isn't the case.

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https://bugs.launchpad.net/bugs/1332988

Title:
  kdb5_util create and krb5_newrealm fail due to existing
  /var/lib/krb5kdc/principal/wrong error message

Status in “krb5” package in Ubuntu:
  New

Bug description:
  The invokation of both

      LANG=C kdb5_util -r example.com create # with 'example.com' != `hostname`
      # and
      LANG=C krb5_newrealm

  fail with `kdb5_util: File exists while creating database
  '/etc/krb5kdc/principal'` (both with complex password `KPZp*4=pzx
  ^ZGnI-dacjWaOO2` and simple password `a`.  Output before is

      This script should be run on the master KDC/admin server to initialize
      a Kerberos realm.  It will ask you to type in a master key password.
      This password will be used to generate a key that is stored in
      /etc/krb5kdc/stash.  You should try to remember this password, but it
      is much more important that it be a strong password than that it be
      remembered.  However, if you lose the password and /etc/krb5kdc/stash,
      you cannot decrypt your Kerberos database.
      Loading random data
      Initializing database '/var/lib/krb5kdc/principal' for realm 'richter-local.de',
      master key name 'K/M at richter-local.de'
      You will be prompted for the database Master Password.
      It is important that you NOT FORGET this password.
      Enter KDC database master key:
      Re-enter KDC database master key to verify:

  Fixing the issue by invoking

      kdb5_util -r example.com -m destroy -f

  before repeating commands above isn't possible due to error
  `kdb5_util: No such entry in the database while retrieving master
  entry`, `mv /var/lib/krb5kdc/principal /var/lib/krb5kdc/principal.bk1`
  doesn't help.

  After reading the man pages for `kdb5_util` and `krb5_newrealm` it is
  unclear what is acutally missing and/or errornous. At least I don't
  see a reason for such a low quality error message.

  == Ubuntu related ==
  The state should be reset by invoking `apt-get purge krb5-kdc krb5-admin-server` which isn't the case.

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