configure fails because postinst tries to get nonexistent db entries

[Johannes Rohr]

This happens when I try to reinstall / reconfigure postfixadmin 3.0.2

postfixadmin (3.0.2-2) wird eingerichtet ...
dbconfig-common: writing config to /etc/dbconfig-common/postfixadmin.conf
dbconfig-common: flushing administrative password
dpkg: Fehler beim Bearbeiten des Paketes postfixadmin (--configure):
 installed postfixadmin package post-installation script subprocess returned error exit status 10
Fehler traten auf beim Bearbeiten von:
 postfixadmin
E: Sub-process /usr/bin/dpkg returned an error code (1)

When I set -x in the postinst script I get the following picture:

Setting up postfixadmin (3.0.2-2) ...
+ set -e
+ '[' configure = configure ']'
+ dbc_generate_include=php:/etc/postfixadmin/dbconfig.inc.php
+ dbc_generate_include_args='-O root:www-data -m 640 -U'
+ . /usr/share/debconf/confmodule
++ '[' '!' '' ']'
++ PERL_DL_NONLAZY=1
++ export PERL_DL_NONLAZY
++ '[' '' ']'
++ exec /usr/share/debconf/frontend /var/lib/dpkg/info/postfixadmin.postinst configure 3.0.2-2
+ set -e
+ '[' configure = configure ']'
+ dbc_generate_include=php:/etc/postfixadmin/dbconfig.inc.php
+ dbc_generate_include_args='-O root:www-data -m 640 -U'
+ . /usr/share/debconf/confmodule
++ '[' '!' 1 ']'
++ '[' -z '' ']'
++ exec
++ '[' '' ']'
++ exec
++ DEBCONF_REDIR=1
++ export DEBCONF_REDIR
+ . /usr/share/dbconfig-common/dpkg/postinst
+ dbc_go postfixadmin configure 3.0.2-2
+ local importing_from_non_dbc upgrading reconfiguring f tsubstfile upgrades_pending dbc_dumpfile _dbc_asuser reinstall nowtime need_adminpw _tmp_result
+ . /usr/share/dbconfig-common/dpkg/common
++ . /usr/share/dbconfig-common/internal/common
+++ '[' '' ']'
+++ _dbc_logfile=/var/log/dbconfig-common/dbc.log
+ _dbc_debug '(postinst) dbc_go() postfixadmin' configure 3.0.2-2
+ '[' '' ']'
+ dbc_no_thanks
+ local no_thanks_status
++ dpkg-query -W '-f=${db:Status-Want}' dbconfig-no-thanks
+ no_thanks_status=unknown
+ '[' unknown = install ']'
+ '[' unknown = hold ']'
+ return 1
+ dbc_config postfixadmin configure 3.0.2-2
+ _dbc_debug 'dbc_config() postfixadmin' configure 3.0.2-2
+ '[' '' ']'
+ dbc_share=/usr/share/dbconfig-common
+ dbc_package=postfixadmin
++ echo postfixadmin
++ cut -d_ -f1
+ dbc_basepackage=postfixadmin
+ dbc_command=configure
+ dbc_oldversion=3.0.2-2
+ _dbc_sanity_check package command
+ '[' 2 -ne 0 ']'
+ case "$1" in
+ '[' -z postfixadmin ']'
+ shift
+ '[' 1 -ne 0 ']'
+ case "$1" in
+ '[' -z configure ']'
+ shift
+ '[' 0 -ne 0 ']'
+ dbc_confdir=/etc/dbconfig-common
+ dbc_globalconfig=/etc/dbconfig-common/config
+ dbc_packageconfig=/etc/dbconfig-common/postfixadmin.conf
+ dbc_standard_templates='database-type dbconfig-install dbconfig-upgrade dbconfig-remove dbconfig-reinstall password-confirm app-password-confirm purge upgrade-backup passwords-do-not-match install-error upgrade-error remove-error internal/reconfiguring internal/skip-preseed missing-db-package-error'
+ dbc_mysql_templates='mysql/method remote/host remote/newhost mysql/app-pass mysql/admin-user mysql/admin-pass remote/port db/dbname db/app-user'
+ dbc_pgsql_templates='pgsql/method remote/host remote/newhost pgsql/app-pass pgsql/admin-user pgsql/admin-pass remote/port pgsql/authmethod-admin pgsql/authmethod-user pgsql/changeconf pgsql/manualconf db/dbname db/app-user pgsql/no-empty-passwords'
+ dbc_sqlite_templates='db/dbname db/basepath'
+ dbc_authenticated_dbtypes='mysql pgsql'
+ dbc_remote_dbtypes='mysql pgsql'
+ dbc_fs_dbtypes='sqlite sqlite3'
+ '[' -f /etc/dbconfig-common/config ']'
+ . /etc/dbconfig-common/config
++ dbc_remember_admin_pass=false
++ dbc_remote_questions_default=false
+ '[' '!' '' ']'
+ dbc_prio_low=low
+ '[' '!' '' ']'
+ dbc_prio_medium=medium
+ '[' '!' '' ']'
+ dbc_prio_high=high
+ '[' '!' '' ']'
+ dbc_prio_critical=critical
+ '[' false = true ']'
+ dbc_remote_questions_priority=low
+ dbc_default_pgsql_authmethod_admin=ident
+ dbc_set_dbtype_defaults
+ local happy supported_dbtypes comma
+ _dbc_debug 'dbc_set_dbtype_defaults() '
+ '[' '' ']'
+ '[' '' ']'
+ '[' '' ']'
+ dbc_default_basepath=
+ dbc_db_installed_cmd=dbc__db_installed
+ case $dbc_dbtype in
+ dbc_register_templates='database-type dbconfig-install dbconfig-upgrade dbconfig-remove dbconfig-reinstall password-confirm app-password-confirm purge upgrade-backup passwords-do-not-match install-error upgrade-error remove-error internal/reconfiguring internal/skip-preseed missing-db-package-error mysql/method remote/host remote/newhost mysql/app-pass mysql/admin-user mysql/admin-pass remote/port db/dbname db/app-user pgsql/method remote/host remote/newhost pgsql/app-pass pgsql/admin-user pgsql/admin-pass remote/port pgsql/authmethod-admin pgsql/authmethod-user pgsql/changeconf pgsql/manualconf db/dbname db/app-user pgsql/no-empty-passwords db/dbname db/basepath'
+ '[' '' ']'
+ dbc_dgi_on_manual=true
+ '[' configure = configure ']'
+ dbc_read_package_debconf
+ local tmp_dballow
+ _dbc_debug 'dbc_read_package_debconf() '
+ '[' '' ']'
+ _dbc_sanity_check package
+ '[' 1 -ne 0 ']'
+ case "$1" in
+ '[' -z postfixadmin ']'
+ shift
+ '[' 0 -ne 0 ']'
+ '[' '' ']'
+ '[' '!' '' ']'
+ db_get postfixadmin/database-type
+ _db_cmd 'GET postfixadmin/database-type'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/database-type'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/database-type doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ dbc_set_dbtype_defaults
+ local happy supported_dbtypes comma
+ _dbc_debug 'dbc_set_dbtype_defaults() '
+ '[' '' ']'
+ '[' '' ']'
+ '[' '' ']'
+ dbc_default_basepath=
+ dbc_db_installed_cmd=dbc__db_installed
+ case $dbc_dbtype in
+ dbc_register_templates='database-type dbconfig-install dbconfig-upgrade dbconfig-remove dbconfig-reinstall password-confirm app-password-confirm purge upgrade-backup passwords-do-not-match install-error upgrade-error remove-error internal/reconfiguring internal/skip-preseed missing-db-package-error mysql/method remote/host remote/newhost mysql/app-pass mysql/admin-user mysql/admin-pass remote/port db/dbname db/app-user pgsql/method remote/host remote/newhost pgsql/app-pass pgsql/admin-user pgsql/admin-pass remote/port pgsql/authmethod-admin pgsql/authmethod-user pgsql/changeconf pgsql/manualconf db/dbname db/app-user pgsql/no-empty-passwords db/dbname db/basepath'
+ '[' '' ']'
+ db_get postfixadmin/dbconfig-install
+ _db_cmd 'GET postfixadmin/dbconfig-install'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/dbconfig-install'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/dbconfig-install doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ db_get postfixadmin/dbconfig-upgrade
+ _db_cmd 'GET postfixadmin/dbconfig-upgrade'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/dbconfig-upgrade'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/dbconfig-upgrade doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ db_get postfixadmin/dbconfig-remove
+ _db_cmd 'GET postfixadmin/dbconfig-remove'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/dbconfig-remove'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/dbconfig-remove doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ echo 'mysql pgsql'
+ grep -q ''
+ db_get postfixadmin/db/app-user
+ _db_cmd 'GET postfixadmin/db/app-user'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/db/app-user'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/db/app-user doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
++ echo '10 postfixadmin/db/app-user doesn'\''t exist'
++ sed 's/\(.*\)@\([^@]*\)/\1/'
+ dbc_dbuser='10 postfixadmin/db/app-user doesn'\''t exist'
++ echo '10 postfixadmin/db/app-user doesn'\''t exist'
++ sed -e 's/^[^@]*$//' -e 's/.*@\([^@]*\)/\1/'
+ tmp_dballow=
+ '[' ']'
+ '[' '' ']'
+ echo 'mysql pgsql'
+ grep -q ''
+ db_get postfixadmin/remote/host
+ _db_cmd 'GET postfixadmin/remote/host'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/remote/host'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/remote/host doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ db_get postfixadmin/remote/port
+ _db_cmd 'GET postfixadmin/remote/port'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/remote/port'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/remote/port doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ '[' '!' '' ']'
+ dbc_dbport=
+ echo 'sqlite sqlite3'
+ grep -qa ''
+ db_get postfixadmin/db/basepath
+ _db_cmd 'GET postfixadmin/db/basepath'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/db/basepath'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/db/basepath doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ db_get postfixadmin/db/dbname
+ _db_cmd 'GET postfixadmin/db/dbname'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'GET postfixadmin/db/dbname'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/db/dbname doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ '[' -z '' ']'
+ '[' -z '' ']'
++ echo postfixadmin
++ tr -d +-.
+ dbc_dbname=postfixadmin
+ case $dbc_dbtype in
+ '[' '' ']'
+ dbc_write_package_config
+ local iformat ofile tfile
+ _dbc_debug 'dbc_write_package_config() '
+ '[' '' ']'
+ _dbc_sanity_check packageconfig
+ '[' 1 -ne 0 ']'
+ case "$1" in
+ '[' -z /etc/dbconfig-common/postfixadmin.conf ']'
+ shift
+ '[' 0 -ne 0 ']'
+ '[' '' ']'
+ echo 'dbconfig-common: writing config to /etc/dbconfig-common/postfixadmin.conf'
dbconfig-common: writing config to /etc/dbconfig-common/postfixadmin.conf
++ dbc_mktemp dbconfig-package-config.XXXXXX
++ local tfile ttemplate
++ '[' dbconfig-package-config.XXXXXX ']'
++ ttemplate=dbconfig-package-config.XXXXXX
+++ mktemp -t dbconfig-package-config.XXXXXX
++ tfile=/tmp/dbconfig-package-config.1XKHyx
++ '[' '!' -f /tmp/dbconfig-package-config.1XKHyx ']'
++ echo /tmp/dbconfig-package-config.1XKHyx
+ tfile=/tmp/dbconfig-package-config.1XKHyx
+ '[' '' ']'
+ '[' '' = 'TCP/IP + SSL' ']'
+ cat
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape 10 postfixadmin/db/app-user 'doesn'\''t' exist
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape postfixadmin
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dbc_sq_escape
++ sed -e 's,'\'','\''\\'\'''\'',g'
++ dirname /etc/dbconfig-common/postfixadmin.conf
+ mkdir -p /etc/dbconfig-common
+ ucf --debconf-ok /tmp/dbconfig-package-config.1XKHyx /etc/dbconfig-common/postfixadmin.conf
+ ucfr postfixadmin /etc/dbconfig-common/postfixadmin.conf
+ rm -f /tmp/dbconfig-package-config.1XKHyx
+ '[' '' '!=' true ']'
+ '[' true '!=' true ']'
+ '[' php:/etc/postfixadmin/dbconfig.inc.php ']'
+ echo php:/etc/postfixadmin/dbconfig.inc.php
+ grep -q -E '^[^:]*:'
++ echo php:/etc/postfixadmin/dbconfig.inc.php
++ cut -d: -f1
+ iformat=php
++ echo php:/etc/postfixadmin/dbconfig.inc.php
++ cut -d: -f2
+ ofile=/etc/postfixadmin/dbconfig.inc.php
+ '[' '!' -e /etc/postfixadmin/dbconfig.inc.php ']'
+ dbconfig-generate-include -a -f php -O root:www-data -m 640 -U -U /etc/dbconfig-common/postfixadmin.conf /etc/postfixadmin/dbconfig.inc.php
+ ucfr postfixadmin /etc/dbconfig-common/postfixadmin.conf
+ dbc_read_package_config
+ local _tmp_dbuser _tmp_basepath _tmp_dbname
+ _dbc_debug 'dbc_read_package_config() '
+ '[' '' ']'
+ _dbc_sanity_check package packageconfig
+ '[' 2 -ne 0 ']'
+ case "$1" in
+ '[' -z postfixadmin ']'
+ shift
+ '[' 1 -ne 0 ']'
+ case "$1" in
+ '[' -z /etc/dbconfig-common/postfixadmin.conf ']'
+ shift
+ '[' 0 -ne 0 ']'
+ '[' '' ']'
+ dbc_install=true
+ dbc_upgrade=true
+ '[' -f /etc/dbconfig-common/postfixadmin.conf ']'
+ . /etc/dbconfig-common/postfixadmin.conf
++ dbc_install=
++ dbc_upgrade=
++ dbc_remove=
++ dbc_dbtype=
++ dbc_dbuser='10 postfixadmin/db/app-user doesn'\''t exist'
++ dbc_dbpass=
++ dbc_dballow=
++ dbc_dbserver=
++ dbc_dbport=
++ dbc_dbname=postfixadmin
++ dbc_dbadmin=
++ dbc_basepath=
++ dbc_ssl=
++ dbc_authmethod_admin=
++ dbc_authmethod_user=
+ '[' '!' '' ']'
+ '[' -z '' ']'
+ dbc_dballow=localhost
+ '[' '' '!=' true ']'
+ dbc_postinst_cleanup
+ _dbc_debug 'dbc_postinst_cleanup() '
+ '[' '' ']'
+ echo 'mysql pgsql'
+ grep -q ''
+ '[' false '!=' true ']'
+ dbc_forget_dbadmin_password
+ _dbc_debug 'dbc_forget_dbadmin_password() '
+ '[' '' ']'
+ echo dbconfig-common: flushing administrative password
dbconfig-common: flushing administrative password
+ db_reset postfixadmin//admin-pass
+ _db_cmd 'RESET postfixadmin//admin-pass'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin//admin-pass'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin//admin-pass doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_fset postfixadmin//admin-pass seen false
+ _db_cmd 'FSET postfixadmin//admin-pass' seen false
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'FSET postfixadmin//admin-pass seen false'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin//admin-pass doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_reset postfixadmin/password-confirm
+ _db_cmd 'RESET postfixadmin/password-confirm'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin/password-confirm'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/password-confirm doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_fset postfixadmin/password-confirm seen false
+ _db_cmd 'FSET postfixadmin/password-confirm' seen false
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'FSET postfixadmin/password-confirm seen false'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/password-confirm doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ '[' '' '!=' true ']'
+ dbc_forget_app_password
+ _dbc_debug 'dbc_forget_app_password() '
+ '[' '' ']'
+ db_reset postfixadmin//app-pass
+ _db_cmd 'RESET postfixadmin//app-pass'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin//app-pass'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin//app-pass doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_fset postfixadmin//app-pass seen false
+ _db_cmd 'FSET postfixadmin//app-pass' seen false
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'FSET postfixadmin//app-pass seen false'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin//app-pass doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_reset postfixadmin/app-password-confirm
+ _db_cmd 'RESET postfixadmin/app-password-confirm'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin/app-password-confirm'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/app-password-confirm doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_fset postfixadmin/app-password-confirm seen false
+ _db_cmd 'FSET postfixadmin/app-password-confirm' seen false
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'FSET postfixadmin/app-password-confirm seen false'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/app-password-confirm doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ true
+ db_reset postfixadmin/internal/skip-preseed
+ _db_cmd 'RESET postfixadmin/internal/skip-preseed'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin/internal/skip-preseed'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/internal/skip-preseed doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ db_reset postfixadmin/internal/reconfiguring
+ _db_cmd 'RESET postfixadmin/internal/reconfiguring'
+ _db_internal_IFS='
'
+ IFS=' '
+ printf '%s\n' 'RESET postfixadmin/internal/reconfiguring'
+ IFS='
'
+ IFS='
'
+ read -r _db_internal_line
+ RET='10 postfixadmin/internal/reconfiguring doesn'\''t exist'
+ case ${_db_internal_line%%[ ]*} in
+ return 10
+ return 10
dpkg: error processing package postfixadmin (--configure):
 installed postfixadmin package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
 postfixadmin

So obviously, it queries debconf for a value that does not exits and then exits with a failure

When I run debconf-show postfixadmin I find the result to be empty. However, I know too little about debconf magic to actually make sense of this. Maybe you know what is wrong here..