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無法在 ubuntu 12.04.5 TLS 上刪除 mysql-server

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無法在 ubuntu 12.04.5 TLS 上刪除 mysql-server

我正在嘗試重新安裝 mysql-server-5.6，但我無能為力，每次我都會收到以下奇怪的訊息：

root@ps****:/home/nikitasorokin# apt-get remove --purge mysql-server-5.6
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  mysql-client-core-5.6
Use 'apt-get autoremove' to remove it.
The following packages will be REMOVED:
  mysql-server-5.6*
0 upgraded, 0 newly installed, 1 to remove and 941 not upgraded.
1 not fully installed or removed.
After this operation, 52.5 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 122623 files and directories currently installed.)
Removing mysql-server-5.6 (5.6.25-0ubuntu1) ...
stop: Unknown instance: 
invoke-rc.d: initscript mysql, action "stop" failed.
dpkg: error processing package mysql-server-5.6 (--purge):
 subprocess installed pre-removal script returned error exit status 1
stop: Unknown instance: 
invoke-rc.d: initscript mysql, action "stop" failed.
start: Job failed to start
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 mysql-server-5.6
E: Sub-process /usr/bin/dpkg returned an error code (1)

我知道，主要建議是完全卸載 mysql 及其所有元件，但我不能這樣做。請問您能考慮一下什麼解決方法嗎？

答案1

  1. 編輯post-installation腳本

    sudo nano /var/lib/dpkg/info/mysql-server-5.6.postinst

  2. 搜尋功能

    invoke() {
    if [ -x /usr/sbin/invoke-rc.d ]; then
        invoke-rc.d mysql $1
    else
        /etc/init.d/mysql $1
    fi
}

    並替換為

    invoke() {
    echo
    #if [ -x /usr/sbin/invoke-rc.d ]; then
    #     invoke-rc.d mysql $1
    #else
    #     /etc/init.d/mysql $1
    #fi
}

  3. 儲存檔案

  4. 編輯pre-removal腳本

    sudo nano /var/lib/dpkg/info/mysql-server-5.6.prerm

  5. 搜尋線路

    if [ -x "/etc/init.d/mysql" ] || [ -e "/etc/init/mysql.conf" ]; then
        invoke-rc.d mysql stop || exit $?
fi

    並替換

    if [ -x "/etc/init.d/mysql" ] || [ -e "/etc/init/mysql.conf" ]; then
        echo
        #invoke-rc.d mysql stop || exit $?
fi

  6. 編輯post-removal腳本

    sudo nano /var/lib/dpkg/info/mysql-server-5.6.postrm

  7. 搜尋

    # New packaging paradigm for my.cnf as of Dec-2014 for sharing mysql
# variants in Ubuntu.
case "$1" in
  remove|disappear)
    /usr/share/mysql-common/configure-symlinks remove mysql "$mysql_cfgdir/mysql.cnf"
  ;;
esac

    並替換

    # New packaging paradigm for my.cnf as of Dec-2014 for sharing mysql
# variants in Ubuntu.
case "$1" in
  remove|disappear)
    # /usr/share/mysql-common/configure-symlinks remove mysql "$mysql_cfgdir/mysql.cnf"
  ;;
esac

  8. 儲存檔案並再次運行命令

    sudo apt-get remove --purge mysql-server-5.6

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