今天安装个firewalld防火墙的时候一直安装不上,提示:
The following packages have unmet dependencies: firewalld : Depends: python3-slip-dbus but it is not going to be installed Recommends: ebtables (>= 2.0.10.4-3.1~) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

然后网上查了说先安装aptitude
,然后用aptitude
来安装软件包,结果安装aptitude
的时候又报错:
The following packages have unmet dependencies: aptitude : Depends: libapt-pkg5.0 (>= 1.1) but it is not going to be installed Recommends: libparse-debianchangelog-perl but it is not going to be installed E: Unable to correct problems, you have held broken packages.

最后抱着试一下的心态换个源再安装,没想到换源后真的安装成功了。

最后分享一下更换的源(Ubuntu20.04,腾讯的源)
deb https://mirrors.cloud.tencent.com/ubuntu/ jammy main restricted universe multiverse
deb-src https://mirrors.cloud.tencent.com/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.cloud.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src https://mirrors.cloud.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
deb https://mirrors.cloud.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src https://mirrors.cloud.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.cloud.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src https://mirrors.cloud.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb https://mirrors.cloud.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src https://mirrors.cloud.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse
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