apt-get update报错the public key is not available: NO_PUBKEY 5BB92C09DB82666C解决办法

执行apt-get update的时候报错如下：The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5BB92C09DB82666C详情：Err:4 http://ppa.launchpad.net/fkrull/deadsnakes/ubuntu xeni

cocosgirl

5038人浏览 · 2020-10-21 09:44:38

cocosgirl · 2020-10-21 09:44:38 发布

执行apt-get update的时候报错如下：

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5BB92C09DB82666C

详情：

Err:4 http://ppa.launchpad.net/fkrull/deadsnakes/ubuntu xenial InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5BB92C09DB82666C
sh: 1: /usr/lib/cnf-update-db: not found
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net/fkrull/deadsnakes/ubuntu xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5BB92C09DB82666C
E: The repository 'http://ppa.launchpad.net/fkrull/deadsnakes/ubuntu xenial 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-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code

解决方式：

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5BB92C09DB82666C

到这里就不报这个错了