今天在更新系统之时又是出现类似EXPKEYSIG的错误，因此又需要进行一番处理的说！
下午时分在再次执行apt update的时候又出现一些警告事项，在执行完毕过后再次定位到具体的警告错误：
Hit:1 http://mirrors.cloud.aliyuncs.com/debian bookworm InRelease Hit:2 http://mirrors.cloud.aliyuncs.com/debian-security bookworm-security InRelease Hit:3 http://mirrors.cloud.aliyuncs.com/debian bookworm-updates InRelease Hit:4 http://mirrors.cloud.aliyuncs.com/debian bookworm-backports InRelease Hit:5 https://nginx.org/packages/mainline/debian bookworm InRelease Hit:6 https://apt.myvestacp.com/bookworm bookworm InRelease Get:7 https://packages.sury.org/php bookworm InRelease [6,133 B] Err:7 https://packages.sury.org/php bookworm InRelease The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <deb@sury.org> Reading package lists... Done Building dependency tree... Done Reading state information... Done All packages are up to date. W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://packages.sury.org/php bookworm InRelease: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <deb@sury.org> W: Failed to fetch https://packages.sury.org/php/dists/bookworm/InRelease The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <deb@sury.org> W: Some index files failed to download. They have been ignored, or old ones used instead.
事关 PHP 的后续版本更新，还是需要即刻就着手解决这个问题的。同样的一开始还是不可避免的出现差错没能一下子解决，但最总还是能成功的解决完毕这个问题了。