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尝试从 20.10 升级到 Ubuntu 21.04 时出错

tag-icon • tag-icon updates 20.10
尝试从 20.10 升级到 Ubuntu 21.04 时出错

每当我尝试运行软件更新程序时，我都会收到错误“无法下载存储库。请检查您的互联网连接。”并且每当我运行时sudo apt update我都会收到错误

Get:6 https://packages.riot.im/debian default InRelease [2,892 B]
Err:6 https://packages.riot.im/debian default InRelease
  The following signatures were invalid: EXPKEYSIG C2850B265AC085BD riot.im packages <[email protected]>
Reading package lists... Done
W: GPG error: https://packages.riot.im/debian default InRelease: The following signatures were invalid: EXPKEYSIG C2850B265AC085BD riot.im packages <[email protected]>
E: The repository 'https://packages.riot.im/debian default InRelease' is not signed.
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.`

答案1

您必须使用以下命令更新存储库 GPG 密钥

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C2850B265AC085BD

wget -q -O - https://packages.riot.im/element-release-key.gpg | sudo apt-key add -
wget -q -O - https://packages.riot.im/element-release-key-2020.gpg | sudo apt-key add -
wget -q -O - https://packages.riot.im/riot-release-key.gpg | sudo apt-key add -

然后将所有具有新依赖项的更新安装到当前系统

sudo apt-get update
sudo apt-get dist-upgrade

答案2

这对我有用（来自https://linuxintosh.wordpress.com/2021/04/26/the-following-signatures-were-invalid-expkeysig-c2850b265ac085bd-riot-im-packages/)：

$ sudo ls -la /usr/share/keyrings/  | grep riot
-rw-r--r--   1 root root  2887 Apr 16  2019 riot-im-archive-keyring.gpg

$ sudo rm /usr/share/keyrings/riot-im-archive-keyring.gpg

$ sudo wget -O /usr/share/keyrings/riot-im-archive-keyring.gpg https://packages.riot.im/debian/riot-im-archive-keyring.gpg

$ echo "deb [signed-by=/usr/share/keyrings/riot-im-archive-keyring.gpg] https://packages.riot.im/debian/ default main" | sudo tee /etc/apt/sources.list.d/riot-im.list

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