升级到22.04（impish Release不再有Release文件）

Question

我正在尝试，$ sudo apt update但我明白了：

Reading package lists... Done                                                                                                                        
E: The repository 'http://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://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://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.
E: The repository 'http://archive.ubuntu.com/ubuntu impish-security 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.

我还没有碰过Software & updates - other softwareORsources.list以防万一有人问。

确切的 Ubuntu 版本。

$ lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 21.10
Release:    21.10
Codename:   impish

编辑：这个问题是关于22.04，而不是关于21.10，感谢您没有关闭它。

Answer 1

截至 7 月 14 日，Ubuntu 21.10“Impish Indri”不再有 Canonical 更新，这就是您无法更新的原因。

您可以继续使用 21.10，但存在安全漏洞等风险，这些漏洞将不再得到修补，但我建议升级到最新的 22.04“Jammy Jellyfish”LTE

以下是 EOL 后如何升级： https: //help.ubuntu.com/community/EOLUpgrades