今天尝试使用 sudo do-release-upgrade 来获取 22.10（从 22.04.1 开始）。失败了。现在我的源代码出现了一些错误。
sudo apt更新：
E: Conflicting values set for option Signed-By regarding source http://archive.ubuntu.com/ubuntu/ jammy: /usr/share/keyrings/ubuntu-archive-automatic-2018.gpg !=
E: The list of sources could not be read.
不知道如何修复。有人可以提供一些建议吗？目前其他一切仍然正常。
谢谢。
编辑（抱歉没有发布足够的信息）：
我注释掉了 sources.list 中的一行，错误就消失了：
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
#deb http://archive.ubuntu.com/ubuntu jammy main universe restricted multiverse
我已确保 sources.list.d 中的所有 *.list 文件都已返回给 jammy。
sudo apt升级：
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
Try Ubuntu Pro beta with a free personal subscription on up to 5 machines.
Learn more at https://ubuntu.com/pro
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
希望这足够了。另外，我刚刚读到 Kinetic 正在逐步升级。我想我错过了，应该再等一等。
答案1
我已将上述编辑重新发布为答案。
/etc/apt/sources.list 中添加了一行没有signed-by语句的额外行。删除/注释掉它就可以了。
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
deb [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
deb-src [arch=amd64 signed-by=/usr/share/keyrings/ubuntu-archive-automatic-2018.gpg] http://archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
#deb http://archive.ubuntu.com/ubuntu jammy main universe restricted multiverse