現在、Ubuntu 15.10を最新バージョンにアップグレードする機会がありません。私が勘違いしていなければ、人生はもう終わりました。今最新バージョンにアップグレードするにはどうすればよいですか？
以下で自分のシステムの正確な状態を確認してください。
ravi@ravi-Aspire-5315:~$ ubuntu-support-status
Support status summary of 'ravi-Aspire-5315':
You have 1909 packages (91.7%) supported until July 2016 (9m)
You have 16 packages (0.8%) supported until April 2017 (9m)
You have 0 packages (0.0%) that can not/no-longer be downloaded
You have 156 packages (7.5%) that are unsupported
Run with --show-unsupported, --show-supported or --show-all to see more details
ravi@ravi-Aspire-5315:~$
また、長い間システムを更新していないため、Software Updaterはセキュリティやその他のアップデートで339 MBをダウンロードする必要があることを示しています。
編集＃1
フォローする協会私の質問についてのコメントで提供されているように。初めて次のコマンドを実行したとき、archive.ubuntu.com次のように変更されました。old-releases.ubuntu.com
sudo sed -i -re 's/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
しかし、更新しようとすると、次のエラーが発生します。404 Not Found
ravi@ravi-Aspire-5315:~$ sudo apt-get update
Ign http://old-releases.ubuntu.com wily InRelease
Hit http://archive.canonical.com wily InRelease
Ign http://old-releases.ubuntu.com wily-updates InRelease
Ign http://old-releases.ubuntu.com wily-backports InRelease
Ign http://old-releases.ubuntu.com wily-security InRelease
Ign http://old-releases.ubuntu.com wily Release.gpg
Hit http://archive.canonical.com wily/partner Sources
Ign http://old-releases.ubuntu.com wily-updates Release.gpg
Hit http://archive.canonical.com wily/partner i386 Packages
Ign http://old-releases.ubuntu.com wily-backports Release.gpg
Hit http://archive.canonical.com wily/partner Translation-en
Ign http://old-releases.ubuntu.com wily-security Release.gpg
Ign http://old-releases.ubuntu.com wily Release
Ign http://old-releases.ubuntu.com wily-updates Release
Ign http://old-releases.ubuntu.com wily-backports Release
Ign http://old-releases.ubuntu.com wily-security Release
Err http://old-releases.ubuntu.com wily/main Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/restricted Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/universe Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/multiverse Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/main i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/restricted i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/universe i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily/multiverse i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Ign http://old-releases.ubuntu.com wily/main Translation-en_IN
Ign http://old-releases.ubuntu.com wily/main Translation-en
Ign http://old-releases.ubuntu.com wily/multiverse Translation-en_IN
Ign http://old-releases.ubuntu.com wily/multiverse Translation-en
Ign http://old-releases.ubuntu.com wily/restricted Translation-en_IN
Ign http://old-releases.ubuntu.com wily/restricted Translation-en
Ign http://old-releases.ubuntu.com wily/universe Translation-en_IN
Ign http://old-releases.ubuntu.com wily/universe Translation-en
Err http://old-releases.ubuntu.com wily-updates/main Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/restricted Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/universe Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/multiverse Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/main i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/restricted i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/universe i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-updates/multiverse i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Ign http://old-releases.ubuntu.com wily-updates/main Translation-en_IN
Ign http://old-releases.ubuntu.com wily-updates/main Translation-en
Ign http://old-releases.ubuntu.com wily-updates/multiverse Translation-en_IN
Ign http://old-releases.ubuntu.com wily-updates/multiverse Translation-en
Ign http://old-releases.ubuntu.com wily-updates/restricted Translation-en_IN
Ign http://old-releases.ubuntu.com wily-updates/restricted Translation-en
Ign http://old-releases.ubuntu.com wily-updates/universe Translation-en_IN
Ign http://old-releases.ubuntu.com wily-updates/universe Translation-en
Err http://old-releases.ubuntu.com wily-backports/main Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/restricted Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/universe Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/multiverse Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/main i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/restricted i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/universe i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-backports/multiverse i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Ign http://old-releases.ubuntu.com wily-backports/main Translation-en_IN
Ign http://old-releases.ubuntu.com wily-backports/main Translation-en
Ign http://old-releases.ubuntu.com wily-backports/multiverse Translation-en_IN
Ign http://old-releases.ubuntu.com wily-backports/multiverse Translation-en
Ign http://old-releases.ubuntu.com wily-backports/restricted Translation-en_IN
Ign http://old-releases.ubuntu.com wily-backports/restricted Translation-en
Ign http://old-releases.ubuntu.com wily-backports/universe Translation-en_IN
Ign http://old-releases.ubuntu.com wily-backports/universe Translation-en
Err http://old-releases.ubuntu.com wily-security/main Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/restricted Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/universe Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/multiverse Sources
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/main i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/restricted i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/universe i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Err http://old-releases.ubuntu.com wily-security/multiverse i386 Packages
404 Not Found [IP: 91.189.88.17 80]
Ign http://old-releases.ubuntu.com wily-security/main Translation-en_IN
Ign http://old-releases.ubuntu.com wily-security/main Translation-en
Ign http://old-releases.ubuntu.com wily-security/multiverse Translation-en_IN
Ign http://old-releases.ubuntu.com wily-security/multiverse Translation-en
Ign http://old-releases.ubuntu.com wily-security/restricted Translation-en_IN
Ign http://old-releases.ubuntu.com wily-security/restricted Translation-en
Ign http://old-releases.ubuntu.com wily-security/universe Translation-en_IN
Ign http://old-releases.ubuntu.com wily-security/universe Translation-en
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/main/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/restricted/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/universe/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/multiverse/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/main/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/main/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/restricted/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/universe/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/multiverse/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/main/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-updates/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/main/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/restricted/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/universe/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/multiverse/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/main/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-backports/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/main/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/restricted/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/universe/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/multiverse/source/Sources 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/main/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
W: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/wily-security/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.88.17 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
ravi@ravi-Aspire-5315:~$
答え1
フォローする文書に記載されているガイドライン:
- システム設定で「ソフトウェアとアップデート」設定を開きます。
- 「アップデート」という3番目のタブを選択します。
- [新しいUbuntuリリース通知]ドロップダウンメニューを[新しいリリースの場合]に設定します。
- Alt+を押し、F2コマンドボックスに「update-manager」（引用符なし）と入力します。
- ソフトウェアアップデータが開き、次のメッセージが表示されます。新リリース「16.04 LTS」をご利用いただけます。
- アップグレードをクリックし、画面の指示に従います。