追蹤到最後,解法應當是把 Host 端的 docker 更新來修正,但一開始很懶,只好遮住雙眼摸魚一下 XD
狀態:
```
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
$ docker run -it ubuntu:24.04 /bin/bash
root@a0f5c64ed667:/# apt update
Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
Get:2 http://archive.ubuntu.com/ubuntu noble InRelease [256 kB]
Err:1 http://security.ubuntu.com/ubuntu noble-security InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Err:2 http://archive.ubuntu.com/ubuntu noble InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Get:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
Err:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Get:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
Err:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Reading package lists... Done
W: GPG error: http://security.ubuntu.com/ubuntu noble-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository 'http://security.ubuntu.com/ubuntu noble-security 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.
W: GPG error: http://archive.ubuntu.com/ubuntu noble InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository 'http://archive.ubuntu.com/ubuntu noble 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.
W: GPG error: http://archive.ubuntu.com/ubuntu noble-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository 'http://archive.ubuntu.com/ubuntu noble-updates 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.
W: GPG error: http://archive.ubuntu.com/ubuntu noble-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository 'http://archive.ubuntu.com/ubuntu noble-backports 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.
E: Problem executing scripts APT::Update::Post-Invoke 'rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true'
E: Sub-process returned an error code
```
硬解:
```
root@a0f5c64ed667:/# apt update --allow-insecure-repositories
...
```
安裝軟體:
```
root@a0f5c64ed667:/# apt install -y --allow-unauthenticated vim wget curl git tree python3-virtualenv
...
```
結果越裝越痛苦 XD 還是回去看 Docker 官網安裝教學:docs.docker.com/engine/install/ubuntu/#install-using-the-repository
如此就可以在 Host Ubuntu 16.04 ,正確呼喚出 docker Ubuntu 24.04 來運行,此外,也可以留意 Docker 官方文件建議的 Ubuntu OS 環境已經是 20.04 以上了