使用apt update进行更新时报以下错误
root@yzw-home:~# sudo apt update
忽略:1 https://home-packages.chinauos.com/home plum InRelease
忽略:2 https://home-store-packages.chinauos.com/appstore eagle InRelease
忽略:3 https://home-packages.chinauos.com/printer eagle InRelease
错误:4 https://home-store-packages.chinauos.com/appstore eagle Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. [IP: 61.54.25.98 443]
错误:5 https://home-packages.chinauos.com/home plum Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. [IP: 61.54.25.98 443]
错误:6 https://home-packages.chinauos.com/printer eagle Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. [IP: 61.54.25.98 443]
正在读取软件包列表... 完成
E: 仓库 “https://home-store-packages.chinauos.com/appstore eagle Release” 不再含有 Release 文件。
N: 无法安全地用该源进行更新，所以默认禁用该源。
N: 参见 apt-secure(8) 手册以了解仓库创建和用户配置方面的细节。
E: 仓库 “https://home-packages.chinauos.com/home plum Release” 不再含有 Release 文件。
N: 无法安全地用该源进行更新，所以默认禁用该源。
N: 参见 apt-secure(8) 手册以了解仓库创建和用户配置方面的细节。
E: 仓库 “https://home-packages.chinauos.com/printer eagle Release” 不再含有 Release 文件。
N: 无法安全地用该源进行更新，所以默认禁用该源。
N: 参见 apt-secure(8) 手册以了解仓库创建和用户配置方面的细节。
解决
- 修改当前系统时间，重新更新即可。（本人未使用过不知道是否有用）
- 执行sudo nano /etc/apt/sources.list把https的s删除掉即可。（亲测有用）
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
