postinst is in mysql-common 5.8+1.0.4.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #!/bin/sh
set -e
# Automatically added by dh_installdeb/11ubuntu1
dpkg-maintscript-helper rm_conffile /etc/mysql/conf.d/.keepme 5.6.22-1~ mysql-common -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/11ubuntu1
dpkg-maintscript-helper rm_conffile /etc/mysql/my.cnf 5.6.22-1~ mysql-common -- "$@"
# End automatically added section
# This code needs to go after the debhelper snippets so that it runs after
# dpkg-maintscript-helper rm_conffile on /etc/mysql/my.cnf. As a one off, if
# my.cnf.dpkg-bak exists after this stage then we rename it to
# /etc/mysql/my.cnf.migrated, add an explanatory note to the top and add it is
# a high priority alternative so it gets used in favour of any other my.cnf
# shipped by variants. The /etc/mysql/my.cnf.migrated file will not be owned by
# any package (just like /etc/mysql/my.cnf.dpkg-bak would have been) but we
# rename it since it will be in active use, the user may not expect a .dpkg-bak
# file to be in use and we do not want to surprise the user.
if [ "$1" = "configure" ] && [ -f /etc/mysql/my.cnf.fallback ]; then
# Low priority fallback for client use when no server is installed.
update-alternatives --install /etc/mysql/my.cnf my.cnf /etc/mysql/my.cnf.fallback 100
fi
if [ "$1" = "configure" -a -f /etc/mysql/my.cnf.dpkg-bak ] && dpkg --compare-versions "$2" le "5.6.19-1~exp1ubuntu2~"; then
echo "Moving /etc/mysql/my.cnf.dpkg-bak to /etc/mysql/my.cnf.migrated"
cat - /etc/mysql/my.cnf.dpkg-bak <<EOT > /etc/mysql/my.cnf.migrated
# This file has been automatically moved from your previous
# /etc/mysql/my.cnf, with just this comment added at the top, to maintain MySQL
# operation using your previously customised configuration.
# To switch to the new packaging configuration for automated management of
# /etc/mysql/my.cnf across multiple variants:
#
# 1. Move your customisations from this file to /etc/mysql/conf.d/ and
# to /etc/mysql/<variant>.conf.d/ as appropriate.
# 2. Run "update-alternatives --remove my.cnf /etc/mysql/my.cnf.migrated"
# 3. Remove the file /etc/mysql/my.cnf.migrated
EOT
rm /etc/mysql/my.cnf.dpkg-bak
echo "Using your previous configuration through /etc/mysql/my.cnf.migrated"
update-alternatives --install /etc/mysql/my.cnf my.cnf /etc/mysql/my.cnf.migrated 300
fi
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