当我尝试命令时：
sudo apt update
显示此错误：
E: The repository 'http://security.ubuntu.com/ubuntu impish-security 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.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu impish Release' no longer has 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.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu impish-updates Release' no longer has 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.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu impish-backports Release' no longer has 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.
我该如何修复它？
答案1
如果您可以选择，那么升级到新版本的 Linux 应该可以解决问题。这有点像大锤式的方法，但如果你仍然陷入困境，只想继续生活，那么这是一个选择。作为该过程的一部分，存储库将更新为最新且受支持的内容。
sudo do-release-upgrade
请注意，这会将您的 Linux 升级到更新版本（如果可用）。