宿主及环境为aarch64的CPU的Ubuntu18.04，docker版本为自带的19.03.6。
对于Ubuntu14.04、16.04、18.04这个原因很乌龙，之前百度搜索结果也都不对，最终原因竟然只是因为网络问题。早上8点左右我到公司执行atp update，一切正常，安装lrzsz，htop也成功。但是到了10点左右，就开始无法使用了。
不过在22.04（当前是ubuntu:latest）里尝试发现，自带的报错且按百度搜索到的解决办法都无法解决（手动安装证书报缺少openssl）如下：
root@38fd3b0c0696:/# apt update
Get:1 http://ports.ubuntu.com/ubuntu-ports jammy InRelease [270 kB]
Get:2 http://ports.ubuntu.com/ubuntu-ports jammy-updates InRelease [119 kB]
Err:1 http://ports.ubuntu.com/ubuntu-ports jammy InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Get:3 http://ports.ubuntu.com/ubuntu-ports jammy-backports InRelease [109 kB]
Err:2 http://ports.ubuntu.com/ubuntu-ports jammy-updates InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Get:4 http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease [110 kB]
Err:3 http://ports.ubuntu.com/ubuntu-ports jammy-backports InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Err:4 http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
Reading package lists… Done
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: GPG error: http://ports.ubuntu.com/ubuntu-ports jammy InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository ‘http://ports.ubuntu.com/ubuntu-ports jammy 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: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-updates/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-updates/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: GPG error: http://ports.ubuntu.com/ubuntu-ports jammy-updates InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository ‘http://ports.ubuntu.com/ubuntu-ports jammy-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: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-backports/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-backports/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: GPG error: http://ports.ubuntu.com/ubuntu-ports jammy-backports InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository ‘http://ports.ubuntu.com/ubuntu-ports jammy-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.
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-security/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: http://ports.ubuntu.com/ubuntu-ports/dists/jammy-security/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user ‘_apt’ executing apt-key.
W: GPG error: http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C
E: The repository ‘http://ports.ubuntu.com/ubuntu-ports jammy-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.
替换成阿里云也如此报错，如果改成https呢，又有如下报错：
Ign:1 https://mirrors.aliyun.com/ubuntu-ports jammy InRelease
Ign:2 https://mirrors.aliyun.com/ubuntu-ports jammy-updates InRelease
Ign:3 https://mirrors.aliyun.com/ubuntu-ports jammy-backports InRelease
Ign:4 https://mirrors.aliyun.com/ubuntu-ports jammy-security InRelease
Ign:1 https://mirrors.aliyun.com/ubuntu-ports jammy InRelease
Ign:2 https://mirrors.aliyun.com/ubuntu-ports jammy-updates InRelease
Ign:3 https://mirrors.aliyun.com/ubuntu-ports jammy-backports InRelease
Ign:4 https://mirrors.aliyun.com/ubuntu-ports jammy-security InRelease
Ign:1 https://mirrors.aliyun.com/ubuntu-ports jammy InRelease
Ign:2 https://mirrors.aliyun.com/ubuntu-ports jammy-updates InRelease
Ign:3 https://mirrors.aliyun.com/ubuntu-ports jammy-backports InRelease
Ign:4 https://mirrors.aliyun.com/ubuntu-ports jammy-security InRelease
Err:1 https://mirrors.aliyun.com/ubuntu-ports jammy InRelease
Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.55 443]
Err:2 https://mirrors.aliyun.com/ubuntu-ports jammy-updates InRelease
Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.53 443]
Err:3 https://mirrors.aliyun.com/ubuntu-ports jammy-backports InRelease
Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.54 443]
Err:4 https://mirrors.aliyun.com/ubuntu-ports jammy-security InRelease
Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.56 443]
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
All packages are up to date.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-updates/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-backports/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-security/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-updates/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-backports/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-security/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-updates/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-backports/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-security/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-updates/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-backports/InRelease: No system certificates available. Try installing ca-certificates.
W: https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-security/InRelease: No system certificates available. Try installing ca-certificates.
W: Failed to fetch https://mirrors.aliyun.com/ubuntu-ports/dists/jammy/InRelease Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.55 443]
W: Failed to fetch https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-updates/InRelease Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.53 443]
W: Failed to fetch https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-backports/InRelease Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.54 443]
W: Failed to fetch https://mirrors.aliyun.com/ubuntu-ports/dists/jammy-security/InRelease Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: 103.151.149.56 443]
W: Some index files failed to download. They have been ignored, or old ones used instead.