ubuntu 添加 flatpak 远端flathub地址。

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

出现下面Unacceptable TLS certificate错误。

error: Can't load uri https://flathub.org/repo/flathub.flatpakrepo: Unacceptable TLS certificate

解决方法：重新安装下ca-certificates。

apt install --reinstall ca-certificates

参考：https://itsfoss.com/unacceptable-tls-certificate-error-linux/