Linux Mint 18.3（Ubuntu Xenialベース）。
ここで他の質問を見てきましたが、まだパッケージリスト、特にMariaDBのクリーンアップをどこで始めるべきかわかりません。これらのリストの管理と考慮事項の詳細を読むためのリンクがあることをお勧めします。
以下の出力で特に知りたいことが一つあります。 MariaDB（MySQL）のインストール時にどうすればよいですか？
mysqlとmysqldのバージョンを見つけようとすると、次のメッセージが表示されます。
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/には、このMySQLの問題に関連しているように見える2つのファイル（MariaDB101.listとMariaDB102.list）があります。たとえば、後者には1行だけが含まれます。
deb https://mirrors.evowise.com/mariadb/repo/10.2/ubuntu serena main
これを取り除くつもりはありますか？その後、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」という単語を含むパッケージが数十個あることです。どのパッケージをインストールするのかわかりません。
これにより、既存のMariaDBインストールを何とか「上書きする」ことができますか？
この結果について他のコメントがあれば、sudo apt-get update大変感謝いたします。
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
答え1
W: The repository 'https://mirrors.evowise.com/mariadb/repo/10.1/ubuntu serena Release' does not have a Release file.
serenaこのリポジトリでサポートされていないコード名（Mint 18.01）のリポジトリが削除されましたserena。
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同じリポジトリが複数回構成されていることを確認し、重複エントリを削除します。
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。Opera APTリポジトリを手動で追加するを参照してください。
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.
GPGキーを追加する必要がありますSpotify倉庫:
curl -sS https://download.spotify.com/debian/pubkey.gpg | sudo apt-key add -
次に、次を実行します。
sudo apt update
sudo apt autoremove