Debian Testing中的Simple-CDD更新到0.4之后加入了gpg签名验证,会导致自定义repo无法通过验证,为了解决上述问题,修改/usr/share/simple-cdd/build-simple-cdd文件,将194行的

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    test -z "$keyring" && keyring=/usr/share/keyrings/debian-archive-keyring.gpg

内容注销掉,即修改为

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    #test -z "$keyring" && keyring=/usr/share/keyrings/debian-archive-keyring.gpg

即可