Do you want to continue? [Y/n] y
 dpkg: error processing package redmine (--configure):
 package redmine is not ready for configuration
 cannot configure (current status 'half-installed')
 Errors were encountered while processing:
 redmine
 E: Sub-process /usr/bin/dpkg returned an error code (1)

Do you want to continue? [Y/n] y
dpkg: error processing package redmine (--remove):
 package is in a very bad inconsistent state; you should
 reinstall it before attempting a removal
Errors were encountered while processing:
 redmine
E: Sub-process /usr/bin/dpkg returned an error code (1)

Preparing to unpack .../redmine_3.2.1-2_all.deb ...
Unpacking redmine (3.2.1-2) over (3.2.1-2) ...
ls: cannot access '/etc/redmine/*/database.yml': No such file or directory
dirname: missing operand
Try 'dirname --help' for more information.
basename: missing operand
Try 'basename --help' for more information.
dpkg: warning: subprocess old post-removal script returned error exit     status 123
dpkg: trying script from the new package instead ...
ls: cannot access '/etc/redmine/*/database.yml': No such file or directory
dirname: missing operand
Try 'dirname --help' for more information.
basename: missing operand
Try 'basename --help' for more information.
dpkg: error processing archive /var/cache/apt/archives    /redmine_3.2.1-2_all.deb (--unpack):
 subprocess new post-removal script returned error exit status 123
ls: cannot access '/etc/redmine/*/database.yml': No such file or directory
dirname: missing operand
Try 'dirname --help' for more information.
basename: missing operand
Try 'basename --help' for more information.
dpkg: error while cleaning up:
 subprocess new post-removal script returned error exit status 123
Errors were encountered while processing:
 /var/cache/apt/archives/redmine_3.2.1-2_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

dpkg: warning: overriding problem because --force enabled:
dpkg: warning: package is in a very bad inconsistent state; you should
 reinstall it before attempting a removal
(Reading database ... 409396 files and directories currently installed.)
Removing redmine (3.2.1-2) ...
ls: cannot access '/etc/redmine/*/database.yml': No such file or directory
dirname: missing operand
Try 'dirname --help' for more information.
basename: missing operand
Try 'basename --help' for more information.
dpkg: error processing package redmine (--remove):
 subprocess installed post-removal script returned error exit status 123
Errors were encountered while processing:
 redmine

dpkg: warning: overriding problem because --force enabled:
 dpkg: warning: package is in a very bad inconsistent state; you should
  reinstall it before attempting a removal
 dpkg: warning: files list file for package 'redmine-sqlite' missing; assuming package has no files currently installed
 dpkg: warning: files list file for package 'redmine-mysql' missing; assuming package has no files currently installed
 (Reading database ... 409382 files and directories currently installed.)
 Removing redmine (3.2.1-2) ...

rake aborted!
Cannot load `Rails.application.database_configuration`:
Could not load database configuration. No such file - ["/usr/share/redmine/instances/default/config/database.yml"]

ls: cannot access '/etc/redmine/*/database.yml': No such file or directory

$ cat /var/lib/dpkg/info/redmine.postrm
#!/bin/sh

set -e

. /usr/share/debconf/confmodule
if [ -f /usr/share/dbconfig-common/dpkg/postrm ]; then
  . /usr/share/dbconfig-common/dpkg/postrm

  # remove both current and old instances
# START OF THE COMMENTED SECTION TO AVOID CRASHES
#  instances=$(ls -1 /etc/redmine/*/database.yml | xargs dirname | xargs -n 1 basename)
#  for inst in $instances; do
#    dbc_go redmine/instances/$inst "$@"
#  done
# END OF THE COMMENTED SECTION TO AVOID CRASHES
fi

if [ "$1" = purge ]; then
  rm -rf /var/log/redmine
  rm -rf /var/cache/redmine
  rm -rf /var/lib/redmine
  rm -rf /etc/redmine
fi

## Automatically added by dh_installdebconf
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
    . /usr/share/debconf/confmodule
    db_purge
fi
# End automatically added section
#

sudo apt-get remove redmine --purge

sudo apt-get update && sudo apt-get install redmine redmine-mysql

Configurando redmine (3.2.1-2) ...
Determining localhost credentials from /etc/mysql/debian.cnf: succeeded.
dbconfig-common: writing config to /etc/dbconfig-common/redmine/instances/default.conf
Not replacing deleted config file /etc/redmine/default/database.yml
granting access to database redmine_default for redmine/instance@localhost: already exists.
creating database redmine_default: already exists.
dbconfig-common: flushing administrative password
rake aborted!
Cannot load 'Rails.application.database_configuration':
Could not load database configuration. No such file - ["/usr/share/redmine/instances/default/config/database.yml"]
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in 'block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in 'eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in 'block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in 'each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in '<top (required)>'
/usr/share/redmine/config/environment.rb:14:in '<top (required)>'
/var/lib/gems/2.3.0/gems/rake-11.3.0/exe/rake:27:in '<top (required)>'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli/exec.rb:74:in 'load'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli/exec.rb:74:in 'kernel_load'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli/exec.rb:27:in 'run'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli.rb:332:in 'exec'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'run'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in 'invoke_command'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/vendor/thor/lib/thor.rb:359:in 'dispatch'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli.rb:20:in 'dispatch'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/cli.rb:11:in 'start'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/exe/bundle:34:in 'block in <top (required)>'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/lib/bundler/friendly_errors.rb:100:in 'with_friendly_errors'
/var/lib/gems/2.3.0/gems/bundler-1.13.1/exe/bundle:26:in '<top (required)>'

Could not load database configuration. No such file - ["/usr/share/redmine/instances/default/config/database.yml"]

cat /usr/share/redmine/instances/default/config/database.yml
# Setup is given for MySQL with ruby1.9.
# Examples for PostgreSQL, SQLite3 and SQL Server can be found at the end.
# Line indentation must be 2 spaces (no tabs).

production:
  adapter: mysql2
  database: redmine_default
  host: localhost
  username: root
  password: "MySQLRootPassword"
  encoding: utf8
development:
  adapter: mysql2
  database: redmine_default
  host: localhost
  username: root
  password: ""
  encoding: utf8
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: mysql2
  database: redmine_test
  host: localhost
  username: root
  password: ""
  encoding: utf8

sudo cp /usr/share/redmine/config/database.yml /usr/share/redmine/instances/default/config/database.yml

sudo apt-get -f install

/usr/local/bin/bundle:23:in 'load': cannot load such file -- /usr/share/rubygems-integration/all/gems/bundler-1.11.2/exe/bundle (LoadError)
        from /usr/local/bin/bundle:23:in '<main>'

dbconfig-common: flushing administrative password
Could not find gem 'mysql2 (~> 0.4.0)' in any of the gem sources listed in your Gemfile or available on this machine.
Run `bundle install` to install missing gems.

Fetching: mysql2-0.4.4.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.̀

[!] There was an error parsing 'Gemfile': undefined method 'values' for "Setup is given for MySQL with ruby1.9.":String. Bundler cannot continue.
 #  from /usr/share/redmine/Gemfile:67
 #  -------------------------------------------
 #    database_config = YAML::load(ERB.new(IO.read(database_file)).result)
 >    adapters = database_config.values.map {|c| c['adapter']}.compact.uniq
 #    if adapters.any?
 #  -------------------------------------------