sudo apt-get updateエラー：MariaDBインストールをクリーンアップするにはどうすればよいですか？
Linux Mint 18.3（Ubuntu Xenialベース）。
私はここで他の質問を見てきましたが、パッケージリスト、特にMariaDBのクリーンアップをどこから始めればよいのかまだわかりません。これらのリストの管理についてもう少し読むことができる場所へのリンクと、それらの注意事項と禁止事項は良いでしょう。
特に、以下の出力から1つだけ知りたいことがあります。MariaDB（MySQL）のインストールについて何をすべきですか？
私のmysqlおよびmysqldバージョンを見つけようとすると、次のようになります。
mikeM17A ~ $ mysql --version
mysql Ver 15.1 Distrib 10.2.16-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2
mike@M17A ~ $ mysqld --version
mysqld Ver 10.2.16-MariaDB-10.2.16+maria~xenial for debian-linux-gnu on x86_64 (mariadb.org binary distribution)
/etc/apt/sources.list.d/にこのMySQLの問題に関与しているように見える2つのファイルがあります。MariaDB101.listとMariaDB102.listです。たとえば、後者には1行しか含まれていません。
deb https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena main
これらを削除するという考えはありますか？そして、Synaptic（10.2.27）で利用可能なMariaDBをインストールする必要がありますか？問題は、「mariadb」という単語が含まれたパッケージが数十個あることです。どちらをインストールすればよいかわかりません。
それを行うと、既存のMariaDBインストールに「上書き」されてしまいますか？
Sudo apt-get updateからのこの出力に関するその他のコメントをいただければ幸いです。
mike@M17A ~ $ Sudo apt-get update
Hit:1 http://ppa.launchpad.net/adabbas/1stppa/ubuntu xenial InRelease
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:3 http://ppa.launchpad.net/alessandro-strada/ppa/ubuntu xenial InRelease
Hit:4 https://deb.nodesource.com/node_10.x xenial InRelease
Hit:5 http://dl.google.com/linux/chrome/deb stable Release
Hit:6 http://archive.ubuntu.com/ubuntu xenial InRelease
Hit:7 http://ppa.launchpad.net/bit-team/stable/ubuntu xenial InRelease
Hit:8 http://archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:9 http://ppa.launchpad.net/cwchien/gradle/ubuntu xenial InRelease
Hit:10 http://archive.ubuntu.com/ubuntu xenial-backports InRelease
Get:12 https://deb.opera.com/opera-stable stable InRelease [2,591 B]
Hit:13 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu xenial InRelease
Hit:14 http://security.ubuntu.com/ubuntu xenial-security InRelease
Ign:15 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena InRelease
Ign:16 http://packages.linuxmint.com sylvia InRelease
Hit:17 http://ppa.launchpad.net/jeffreyratcliffe/ppa/ubuntu xenial InRelease
Ign:18 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena InRelease
Hit:19 https://dl.winehq.org/wine-builds/ubuntu xenial InRelease
Ign:20 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena Release
Hit:21 http://archive.canonical.com/ubuntu xenial InRelease
Hit:22 http://ppa.launchpad.net/michael-sheldon/deepspeech/ubuntu xenial InRelease
Get:23 http://repository.spotify.com stable InRelease [3,316 B]
Ign:24 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena Release
Hit:25 http://ppa.launchpad.net/michael-sheldon/gst-deepspeech/ubuntu xenial InRelease
Get:26 http://packages.linuxmint.com sylvia Release [24.2 kB]
Ign:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
Hit:28 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial InRelease
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Hit:30 http://ppa.launchpad.net/openjdk-r/ppa/ubuntu xenial InRelease
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Hit:33 http://ppa.launchpad.net/qos/pulseaudio-dlna/ubuntu xenial InRelease
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Hit:35 http://ppa.launchpad.net/rolfbensch/sane-git/ubuntu xenial InRelease
Ign:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Hit:38 http://ppa.launchpad.net/stefansundin/truecrypt/ubuntu xenial InRelease
Err:12 https://deb.opera.com/opera-stable stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B8EC3BAABDC4346
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Hit:41 http://ppa.launchpad.net/team-xbmc/ppa/ubuntu xenial InRelease
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Hit:43 http://ppa.launchpad.net/teejee2008/ppa/ubuntu xenial InRelease
Get:44 http://packages.linuxmint.com sylvia Release.gpg [819 B]
Ign:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
Hit:45 http://ppa.launchpad.net/thomas.tsai/ubuntu-tuxboot/ubuntu xenial InRelease
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Ign:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Hit:46 http://ftp.yz.yamagata-u.ac.jp/pub/dbms/mariadb/repo/10.2/ubuntu xenial InRelease
Ign:23 http://repository.spotify.com stable InRelease
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Ign:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Ign:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Ign:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Ign:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Ign:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Ign:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Err:27 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main AMD64 Packages
404 Not Found
Ign:29 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main i386 Packages
Ign:31 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main all Packages
Ign:32 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en_GB
Ign:34 https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena/main Translation-en
Err:36 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main AMD64 Packages
404 Not Found
Ign:37 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main i386 Packages
Ign:39 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main all Packages
Ign:40 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en_GB
Ign:42 https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena/main Translation-en
Fetched 30.9 kB in 2s (14.3 kB/s)
Reading package lists... Done
W: Target Packages (main/binary-AMD64/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: The repository 'https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://deb.opera.com/opera-stable stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B8EC3BAABDC4346
W: GPG error: http://repository.spotify.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4773BD5E130D1D45
W: The repository 'http://repository.spotify.com stable InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Failed to fetch https://deb.opera.com/opera-stable/dists/stable/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B8EC3BAABDC4346
E: Failed to fetch https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu/dists/serena/main/binary-AMD64/Packages 404 Not Found
E: Failed to fetch https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu/dists/serena/main/binary-AMD64/Packages 404 Not Found
W: Some index files failed to download. They have been ignored, or old ones used instead.
W: Target Packages (main/binary-AMD64/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
W: The repository 'https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena Release' does not have a Release file.
serenaコードネーム（Mint 18.01）のリポジトリを削除してください。リポジトリはserena codnameをサポートしていません。
W: Target Packages (main/binary-AMD64/Packages) is configured multiple times in /etc/apt/sources.list.d/additional-repositories.list:2 and /etc/apt/sources.list.d/additional-repositories.list:3
/etc/apt/sources.list.d/additional-repositories.list同じリポジトリを複数回設定し、重複したエントリを削除しました。
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://deb.opera.com/opera-stable stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B8EC3BAABDC4346
Gpgキーをダウンロードする必要があります 手動でOpera APTレポジトリ）を追加するをご覧ください
wget -qO - https://deb.opera.com/archive.key | Sudo apt-key add -
W: GPG error: http://repository.spotify.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4773BD5E130D1D45 W: The repository 'http://repository.spotify.com stable InRelease' is not signed.
spotify repo のgpgキーを追加する必要があります：
curl -sS https://download.spotify.com/debian/pubkey.gpg | Sudo apt-key add -
次に実行します：
Sudo apt update
Sudo apt autoremove