I can reproduce the problem when upgrading the tango-db package from unstable to the one from experimental.
Unstable is up to date. The failing line is /usr/sbin/dbconfig-generate-include: 246: cannot create /tmp/dbconfig- generate-include.FaUbJB: Permission denied I'm attaching the full log as well. root@debian:/home/thomas# apt remove --purge "tango*" [...] The following packages will be REMOVED: libtango-tools* libtango9* tango-common* tango-db* tango-starter* tango-test* 0 upgraded, 0 newly installed, 6 to remove and 1 not upgraded. After this operation, 9,363 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 311392 files and directories currently installed.) Removing tango-test (9.3.4~rc6+dfsg1-1~exp1) ... Removing tango-starter (9.3.4~rc6+dfsg1-1~exp1) ... Removing tango-db (9.3.4~rc6+dfsg1-1~exp1) ... Determining localhost credentials from /etc/mysql/debian.cnf: succeeded. dbconfig-common: dumping mysql database tango to /var/tmp/tango- db.tango.2020-09-10-12.46.mysql.aNGXXT. dbconfig-common: dropping mysql database tango. dropping database tango: success. verifying database tango was dropped: success. dbconfig-common: revoking privileges for user tango on tango. revoking access to database tango from tango@localhost: success. Removing libtango-tools (9.3.4~rc6+dfsg1-1~exp1) ... Removing libtango9:amd64 (9.3.4~rc6+dfsg1-1~exp1) ... Removing tango-common (9.3.4~rc6+dfsg1-1~exp1) ... Processing triggers for libc-bin (2.31-3) ... (Reading database ... 311344 files and directories currently installed.) Purging configuration files for tango-common (9.3.4~rc6+dfsg1-1~exp1) ... dpkg: warning: while removing tango-common, directory '/var/lib/tango' not empty so not removed Purging configuration files for tango-starter (9.3.4~rc6+dfsg1-1~exp1) ... insserv: Script sysstat has overlapping Default-Start and Default-Stop runlevels (2 3 4 5) and (2 3 4 5). This should be fixed. Purging configuration files for tango-db (9.3.4~rc6+dfsg1-1~exp1) ... insserv: Script sysstat has overlapping Default-Start and Default-Stop runlevels (2 3 4 5) and (2 3 4 5). This should be fixed. Processing triggers for systemd (246.4-1) ... root@debian:/home/thomas# rm /var/tmp/tango-db.tango.* root@debian:/home/thomas# apt install tango-db [...] The following additional packages will be installed: libtango-tools libtango9 tango-common The following NEW packages will be installed: libtango-tools libtango9 tango-common tango-db 0 upgraded, 4 newly installed, 0 to remove and 1 not upgraded. Need to get 1,852 kB of archives. After this operation, 7,932 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://ftp.de.debian.org/debian unstable/main amd64 tango-common all 9.2.5a+dfsg1-2 [8,568 B] Get:2 http://ftp.de.debian.org/debian unstable/main amd64 libtango9 amd64 9.2.5a+dfsg1-2+b2 [1,613 kB] Get:3 http://ftp.de.debian.org/debian unstable/main amd64 libtango- tools amd64 9.2.5a+dfsg1-2+b2 [29.2 kB] Get:4 http://ftp.de.debian.org/debian unstable/main amd64 tango-db amd64 9.2.5a+dfsg1-2+b2 [202 kB] Fetched 1,852 kB in 1s (2,633 kB/s) Preconfiguring packages ... Selecting previously unselected package tango-common. (Reading database ... 311341 files and directories currently installed.) Preparing to unpack .../tango-common_9.2.5a+dfsg1-2_all.deb ... Unpacking tango-common (9.2.5a+dfsg1-2) ... Selecting previously unselected package libtango9:amd64. Preparing to unpack .../libtango9_9.2.5a+dfsg1-2+b2_amd64.deb ... Unpacking libtango9:amd64 (9.2.5a+dfsg1-2+b2) ... Selecting previously unselected package libtango-tools. Preparing to unpack .../libtango-tools_9.2.5a+dfsg1-2+b2_amd64.deb ... Unpacking libtango-tools (9.2.5a+dfsg1-2+b2) ... Selecting previously unselected package tango-db. Preparing to unpack .../tango-db_9.2.5a+dfsg1-2+b2_amd64.deb ... Unpacking tango-db (9.2.5a+dfsg1-2+b2) ... Setting up tango-common (9.2.5a+dfsg1-2) ... usermod: no changes Setting up libtango9:amd64 (9.2.5a+dfsg1-2+b2) ... Setting up libtango-tools (9.2.5a+dfsg1-2+b2) ... Setting up tango-db (9.2.5a+dfsg1-2+b2) ... Determining localhost credentials from /etc/mysql/debian.cnf: succeeded. dbconfig-common: writing config to /etc/dbconfig-common/tango-db.conf Creating config file /etc/dbconfig-common/tango-db.conf with new version Creating config file /var/lib/tango/.my.cnf with new version checking privileges on database tango for tango@localhost: user creation needed. granting access to database tango for tango@localhost: success. verifying access for tango@localhost: success. creating database tango: success. verifying database tango exists: success. populating database via sql... done. dbconfig-common: flushing administrative password insserv: Script sysstat has overlapping Default-Start and Default-Stop runlevels (2 3 4 5) and (2 3 4 5). This should be fixed. Processing triggers for systemd (246.4-1) ... Processing triggers for libc-bin (2.31-3) ... root@debian:/home/thomas# export dbc_debug=1 root@debian:/home/thomas# apt install -t experimental tango-db [...] The following additional packages will be installed: liblog4tango5v5 libtango9 The following packages will be upgraded: liblog4tango5v5 libtango9 tango-db 3 upgraded, 0 newly installed, 0 to remove and 123 not upgraded. Need to get 1,892 kB of archives. After this operation, 384 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://deb.debian.org/debian experimental/main amd64 liblog4tango5v5 amd64 9.3.4~rc7+dfsg1-1~exp1 [18.3 kB] Get:2 http://deb.debian.org/debian experimental/main amd64 libtango9 amd64 9.3.4~rc7+dfsg1-1~exp1 [1,667 kB] Get:3 http://deb.debian.org/debian experimental/main amd64 tango-db amd64 9.3.4~rc7+dfsg1-1~exp1 [206 kB] Fetched 1,892 kB in 8s (224 kB/s) (Reading database ... 311386 files and directories currently installed.) Preparing to unpack .../liblog4tango5v5_9.3.4~rc7+dfsg1- 1~exp1_amd64.deb ... Unpacking liblog4tango5v5:amd64 (9.3.4~rc7+dfsg1-1~exp1) over (9.3.4~rc6+dfsg1-1~exp1) ... Preparing to unpack .../libtango9_9.3.4~rc7+dfsg1-1~exp1_amd64.deb ... Unpacking libtango9:amd64 (9.3.4~rc7+dfsg1-1~exp1) over (9.2.5a+dfsg1- 2+b2) ... Preparing to unpack .../tango-db_9.3.4~rc7+dfsg1-1~exp1_amd64.deb ... (prerm) dbc_go() tango-db upgrade 9.3.4~rc7+dfsg1-1~exp1. dbc_config() tango-db upgrade 9.3.4~rc7+dfsg1-1~exp1. dbc_set_dbtype_defaults() . dbc_read_package_config() . dbc_set_dbtype_defaults() mysql. Determining localhost credentials from /etc/mysql/debian.cnf: succeeded. Unpacking tango-db (9.3.4~rc7+dfsg1-1~exp1) over (9.2.5a+dfsg1-2+b2) ... (postrm) dbc_go() tango-db upgrade 9.3.4~rc7+dfsg1-1~exp1. dbc_config() tango-db upgrade 9.3.4~rc7+dfsg1-1~exp1. dbc_set_dbtype_defaults() . dbc_read_package_config() . dbc_preseed_package_debconf() . Setting up liblog4tango5v5:amd64 (9.3.4~rc7+dfsg1-1~exp1) ... Setting up libtango9:amd64 (9.3.4~rc7+dfsg1-1~exp1) ... Setting up tango-db (9.3.4~rc7+dfsg1-1~exp1) ... (config) dbc_go() tango-db configure 9.2.5a+dfsg1-2+b2. dbc_config() tango-db configure 9.2.5a+dfsg1-2+b2. dbc_set_dbtype_defaults() . dbc_register_debconf() . dbc_read_package_config() . dbc_preseed_package_debconf() . dbc_get_app_pass() . Determining localhost credentials from /etc/mysql/debian.cnf: succeeded. (postinst) dbc_go() tango-db configure 9.2.5a+dfsg1-2+b2. dbc_config() tango-db configure 9.2.5a+dfsg1-2+b2. dbc_set_dbtype_defaults() . dbc_read_package_debconf() . dbc_set_dbtype_defaults() mysql. settings determined from dbc_read_package_debconf:. dbc_install=true. dbc_upgrade=true. dbc_remove=true. dbc_dbtype=mysql. dbc_dbuser=tango. dbc_dbpass=jgRSYfoXGHNq. dbc_dballow=localhost. dbc_dbadmin=debian-sys-maint. dbc_dbadmpass=rXoieD9pwjhhGArp. dbc_dbserver=localhost. dbc_dbport=3306. dbc_dbname=tango. dbc_authmethod_admin=. dbc_authmethod_user=. dbc_ssl=. dbc_write_package_config() . dbconfig-common: writing config to /etc/dbconfig-common/tango-db.conf /usr/sbin/dbconfig-generate-include: 246: cannot create /tmp/dbconfig- generate-include.FaUbJB: Permission denied dbc_read_package_config() . dbc_postinst_cleanup() . dbc_forget_dbadmin_password() . dbconfig-common: flushing administrative password dbc_forget_app_password() . insserv: Script sysstat has overlapping Default-Start and Default-Stop runlevels (2 3 4 5) and (2 3 4 5). This should be fixed. Processing triggers for systemd (246.4-1) ... Processing triggers for libc-bin (2.31-3) ...
