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868bc463c0
Update pre-install script to fix package detection and standardize MariaDB/MySQL terminology in messages for improved upgrade reliability and reduced user confusion. All new code of the whole pull request, including one or several files that are either new files or modified ones, are contributed under the BSD-new license. I am contributing on behalf of my employer Amazon Web Services, Inc.
73 lines
3 KiB
Bash
73 lines
3 KiB
Bash
# Check if we can safely upgrade. An upgrade is only safe if it's from one
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# of our RPMs in the same version family.
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installed=`rpm -q --whatprovides mysql-server 2> /dev/null`
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if [ $? -eq 0 -a -n "$installed" ]; then
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installed=`echo "$installed"|sed -n 1p`
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vendor=`rpm -q --queryformat='%''{VENDOR}' "$installed" 2> /dev/null | sed 's/Monty Program AB/MariaDB Foundation/'`
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version=`rpm -q --queryformat='%''{VERSION}' "$installed" 2> /dev/null`
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myvendor='%{mysql_vendor}'
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myversion='%{mysqlversion}'
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old_family=`echo $version | sed -n -e 's,^\([1-9][0-9]*\.[0-9][0-9]*\)\..*$,\1,p'`
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new_family=`echo $myversion | sed -n -e 's,^\([1-9][0-9]*\.[0-9][0-9]*\)\..*$,\1,p'`
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[ -z "$vendor" ] && vendor='<unknown>'
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[ -z "$old_family" ] && old_family="<unrecognized version $version>"
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[ -z "$new_family" ] && new_family="<bad package specification: version $myversion>"
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error_text=
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if [ "$vendor" != "$myvendor" ]; then
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error_text="$error_text
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The current MariaDB server package is provided by a different
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vendor ($vendor) than $myvendor. Some files may be installed
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to different locations, including log files and the service
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startup script in %{_sysconfdir}/init.d/.
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"
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fi
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if [ "$old_family" != "$new_family" ]; then
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error_text="$error_text
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Upgrading directly from MariaDB or MySQL $old_family
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to MariaDB $new_family may not be safe in all cases.
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A manual dump and restore using mariadb-dump (or mysqldump) is recommended.
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It is important to review the MariaDB manual's Upgrading section for
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version-specific incompatibilities.
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"
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fi
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if [ -n "$error_text" ]; then
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cat <<HERE >&2
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******************************************************************
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A MariaDB or MySQL server package ($installed) is installed.
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$error_text
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A manual upgrade is required.
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- Ensure that you have a complete, working backup of your data and my.cnf
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files
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- Shut down the MariaDB or MySQL server cleanly
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- Remove the existing MariaDB or MySQL packages. Usually this command will
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list the packages you should remove:
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rpm -qa | grep -iE '^(mariadb|mysql)-'
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You may choose to use 'rpm --nodeps -ev <package-name>' to remove
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the package which contains the mysqlclient shared library. The
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library will be reinstalled by the MariaDB-shared package.
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- Install the new MariaDB packages supplied by $myvendor
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- Ensure that the MariaDB server is started
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- Run the 'mariadb-upgrade' program
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This is a brief description of the upgrade process. Important details
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can be found in the MariaDB manual, in the Upgrading section.
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******************************************************************
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HERE
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exit 1
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fi
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fi
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# Create a MariaDB user and group. Do not report any problems if it already exists.
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groupadd -r %{mysqld_group} 2> /dev/null || true
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useradd -M -r --home %{mysqldatadir} --shell /sbin/nologin --comment "MariaDB server" --gid %{mysqld_group} %{mysqld_user} 2> /dev/null || true
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# The user may already exist, make sure it has the proper group nevertheless (BUG#12823)
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usermod --gid %{mysqld_group} %{mysqld_user} 2> /dev/null || true
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