ubuntu 17.10をインストールした後、apt-getを使用したソフトウェアのインストールが特に遅いことがわかったため、ソフトウェアソースを変更する必要がありました。
方法：
sudo cp /etc/apt/sources.list ~/sources.list.bak
次のコンテンツを/etc/apt/sources.listファイルに貼り付けます。
# deb cdrom:[Ubuntu 17.04 _Zesty Zapus_ - Release amd64(20170412)]/ zesty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirrors.aliyun.com/ubuntu/ artful main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirrors.aliyun.com/ubuntu/ artful-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates main restricted
## N.B. software fromthis repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://mirrors.aliyun.com/ubuntu/ artful universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty universe
deb http://mirrors.aliyun.com/ubuntu/ artful-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates universe
## N.B. software fromthis repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://mirrors.aliyun.com/ubuntu/ artful multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty multiverse
deb http://mirrors.aliyun.com/ubuntu/ artful-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates multiverse
## N.B. software fromthis repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://mirrors.aliyun.com/ubuntu/ artful-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## ' partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu zesty partner
# deb-src http://archive.canonical.com/ubuntu zesty partner# deb cdrom:[Ubuntu 17.04 _Zesty Zapus_ - Release amd64(20170412)]/ zesty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
# deb http://mirrors.aliyun.com/ubuntu/ artful main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty main restricted
## Major bug fix updates produced after the final release of the
## distribution.
# deb http://mirrors.aliyun.com/ubuntu/ artful-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates main restricted
## N.B. software fromthis repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
# deb http://mirrors.aliyun.com/ubuntu/ artful universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty universe
# deb http://mirrors.aliyun.com/ubuntu/ artful-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates universe
## N.B. software fromthis repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
# deb http://mirrors.aliyun.com/ubuntu/ artful multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty multiverse
# deb http://mirrors.aliyun.com/ubuntu/ artful-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates multiverse
## N.B. software fromthis repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://mirrors.aliyun.com/ubuntu/ artful-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## ' partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu zesty partner
# deb-src http://archive.canonical.com/ubuntu zesty partner
sudo apt-get update
以上が本稿の内容ですので、皆様のご勉強に役立てていただければ幸いです。
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