现象
- 报错如下
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D8FF8E1F7DF8B07E
- apt update报错
W: GPG error: https://repos.influxdata.com/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D8FF8E1F7DF8B07E
E: The repository 'https://repos.influxdata.com/ubuntu focal 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.
解决方案
重新获取公钥
sudo gpg --keyserver keyserver.ubuntu.com --recv-keys D8FF8E1F7DF8B07E
导出公钥并加入apt信任密钥
sudo gpg --export --armor 467B942D3A79BD29 | sudo apt-key add -
apt update 不再报错