首先查看所有apt-key $ sudo apt-key list 在所有列表里，找到pub这一行，最后8个字符，比如ACCC4CF8，就是导出的ID 执行导出 $ apt-key export ACCC4CF8 | sudo gpg --dearmour -o /usr/share/keyrings/pgdg.gpg 编辑源文件，/etc/apt/sources.list.d/pgdg.list 把deb http://apt.postgresql.org/pub/repos/apt jammy-pgdg main修改为deb [arch=amd64 signed-by=/usr/share/keyrings/pgdg.gpg] http://apt.postgresql.org/pub/repos/apt jammy-pgdg main 最近移除旧有的apt-key $ sudo apt-key del ACCC4CF8 来源： https://askubuntu.com/questions/1403556/key-is-stored-in-legacy-trusted-gpg-keyring-after-ubuntu-22-04-update......
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