我遇到了同样的问题。如何停止 APT 持续降级？
每次我 sudo apt update 输出都是：
Ign:1 http ://dl.google.com/linux/chrome/deb stable InRelease
Ign:2 http ://dl.google.com/linux/earth/deb stable InRelease
Hit:3 http ://repo.steampowered.com/steam precise InRelease
Ign:4 http ://dl.google.com/linux/talkplugin/deb stable InRelease
Hit:5 http ://dl.google.com/linux/chrome/deb stable Release
Hit:6 http ://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:7 http ://dl.google.com/linux/earth/deb stable Release
Hit:8 http ://dl.google.com/linux/talkplugin/deb stable Release
Get:9 http ://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Hit:11 http ://archive.canonical.com/ubuntu xenial InRelease
Hit:12 http ://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial InRelease
Get:13 http ://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Get:16 http ://us.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
Hit:17 http ://ppa.launchpad.net/rednotebook/stable/ubuntu xenial InRelease
Hit:18 http ://ppa.launchpad.net/wine/wine-builds/ubuntu xenial InRelease
Fetched 306 kB in 2s (146 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http ://dl.google.com/linux/earth/deb stable InRelease' doesn't support architecture 'i386'
__ [链接故意被破坏，这样我就可以不经警告就发布此内容，因为我的声誉太低了]__
每次 sudo apt upgrade 都会产生：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be DOWNGRADED:
debhelper dh-autoreconf
0 upgraded, 0 newly installed, 2 downgraded, 0 to remove and 0 not upgraded.
Need to get 854 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http ://ppa.launchpad.net/rednotebook/stable/ubuntu xenial/main amd64 dh-autoreconf all 12~ubuntu16.04.1 [16.0 kB]
Get:2 http://ppa.launchpad.net/rednotebook/stable/ubuntu xenial/main amd64 debhelper all 10.2.2ubuntu1~ubuntu16.04.1 [838 kB]
Fetched 854 kB in 1s (480 kB/s)
(Reading database ... 300410 files and directories currently installed.)
Preparing to unpack .../dh-autoreconf_12~ubuntu16.04.1_all.deb ...
Unpacking dh-autoreconf (12~ubuntu16.04.1) over (12~ubuntu16.04.1) ...
Preparing to unpack .../debhelper_10.2.2ubuntu1~ubuntu16.04.1_all.deb ...
Unpacking debhelper (10.2.2ubuntu1~ubuntu16.04.1) over (10.2.2ubuntu1~ubuntu16.04.1) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up dh-autoreconf (12~ubuntu16.04.1) ...
Setting up debhelper (10.2.2ubuntu1~ubuntu16.04.1) ...
rdafg@rdafg-multimade:~/Desktop$
我可以做些什么来删除这两个一直显示“要降级”的软件包？
谢谢
答案1
对于已安装的软件包，如果在多个 apt 源中具有完全相同的版本，则可能会发生这种情况。apt 不会跟踪您从哪个源安装的软件包，并且根据您的 apt 源的顺序，它可能会导致这种奇怪的行为。