我安装了 Lubuntu 17.04，当我想要升级到 17.10 版本时出现了一些问题。
最后，我通过禁用所有存储库解决了这个问题，现在我拥有了 Lubuntu 17.10。但我遇到了一个新问题。
- 首先：我已禁用所有存储库，无法从软件和更新设置中启用主题。当我尝试标记要启用的主题时，什么也没发生！
第二：当我使用时，
sudo apt-get update我有以下看起来不太好的输出：Ign:1 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful InRelease Hit:2 http://archive.ubuntu.com/ubuntu artful InRelease Get:3 http://archive.ubuntu.com/ubuntu artful-updates InRelease [78.6 kB] Err:4 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful Release 404 Not Found Get:5 http://archive.ubuntu.com/ubuntu artful-backports InRelease [72.2 kB] Get:6 http://archive.ubuntu.com/ubuntu artful-security InRelease [78.6 kB] Reading package lists... Done E: The repository 'http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
问题更新：
输出sudo nano /etc/apt/sources.list为：
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu artful main restricted
deb-src http://archive.ubuntu.com/ubuntu artful universe multiverse main restricted #Added by software-properties
# 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://archive.ubuntu.com/ubuntu artful-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu artful-updates universe multiverse main restricted #Added by software-properties
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates main restricted
## N.B. software from this 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://archive.ubuntu.com/ubuntu artful universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty universe
deb http://archive.ubuntu.com/ubuntu artful-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates universe
## N.B. software from this 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://archive.ubuntu.com/ubuntu artful multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty multiverse
deb http://archive.ubuntu.com/ubuntu artful-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ zesty-updates multiverse
## N.B. software from this 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://archive.ubuntu.com/ubuntu artful-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu artful-backports main restricted universe multiverse #Added by software-properties
# 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 http://archive.ubuntu.com/ubuntu artful-security main restricted
deb-src http://archive.ubuntu.com/ubuntu artful-security universe multiverse main restricted #Added by software-properties
# deb-src http://security.ubuntu.com/ubuntu zesty-security main restricted
deb http://archive.ubuntu.com/ubuntu artful-security universe
# deb-src http://security.ubuntu.com/ubuntu zesty-security universe
deb http://archive.ubuntu.com/ubuntu artful-security multiverse
# deb-src http://security.ubuntu.com/ubuntu zesty-security multiverse
# deb http://cran.um.ac.ir/bin/linux/ubuntu artful/
# deb-src http://cran.um.ac.ir/bin/linux/ubuntu artful/
# deb [arch=amd64,i386] https://cran.rstudio.com/bin/linux/ubuntu xenial/
# deb-src [arch=amd64,i386] https://cran.rstudio.com/bin/linux/ubuntu xenial/
# deb-src [arch=amd64,i386] https://cran.rstudio.com/bin/linux/ubuntu xenial/
deb https://cran.r-project.org/bin/linux/ubuntu zesty/
deb-src https://cran.r-project.org/bin/linux/ubuntu zesty/
# deb http://archive.canonical.com/ precise partner
# deb-src http://archive.canonical.com/ precise partner
deb https://dl.winehq.org/wine-builds/ubuntu/ artful main
# deb-src https://dl.winehq.org/wine-builds/ubuntu/ artful main
但sudo apt-get update仍然有以下结果：
Hit:1 http://archive.ubuntu.com/ubuntu artful InRelease
Ign:2 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful InRelease
Hit:3 http://archive.ubuntu.com/ubuntu artful-updates InRelease
Hit:4 http://archive.ubuntu.com/ubuntu artful-backports InRelease
Err:5 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful Release
404 Not Found
Hit:6 http://archive.ubuntu.com/ubuntu artful-security InRelease
Hit:7 https://cran.r-project.org/bin/linux/ubuntu zesty/ InRelease
Hit:8 https://dl.winehq.org/wine-builds/ubuntu artful InRelease
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
我可以在哪里修复：
Err:5 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu artful Release
404 Not Found
我找不到它sources.list
答案1
您可以在这里检查您的存储库：
sudo nano /etc/apt/sources.list
您应该从 Ubuntu wine 中删除 repo（您所得到的）。
保存并退出文件。
为 Ubuntu wine 添加这个 repo。
sudo add-apt-repository ppa:ubuntu-wine/ppa
或者这个：
sudo apt-add-repository 'https://dl.winehq.org/wine-builds/ubuntu/'
最后：
sudo apt-get update