我想在 debian10 上从 Potgresql 9.6 迁移到 11。但是在安装 Postgresql 11 时出现此错误：
apt-get install postgresql-11
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
postgresql-11 : Depends: postgresql-client-11 but it is not going to be installed
Depends: postgresql-common (>= 194~) but 181+deb9u3 is to be installed
E: Unable to correct problems, you have held broken packages.
命令的输出apt-cache 策略是：
Package files:
100 /var/lib/dpkg/status
release a=now
500 http://repo.zabbix.com/zabbix/4.0/debian stretch/main amd64 Packages
release o=Zabbix,n=stretch,l=zabbix,c=main,b=amd64
origin repo.zabbix.com
500 http://repo.squashtest.org/debian stretch/main amd64 Packages
release v=9.0,o=Squashtest.org,a=stable unstable,n=stretch,l=Squashtest.org,c=main,b=amd64
origin repo.squashtest.org
500 http://security.debian.org buster/updates/main amd64 Packages
release v=10,o=Debian,a=stable,n=buster,l=Debian-Security,c=main,b=amd64
origin security.debian.org
500 http://ftp.debian.org/debian buster-updates/main amd64 Packages
release o=Debian,a=stable-updates,n=buster-updates,l=Debian,c=main,b=amd64
origin ftp.debian.org
500 http://ftp.debian.org/debian buster/contrib amd64 Packages
release v=10.7,o=Debian,a=stable,n=buster,l=Debian,c=contrib,b=amd64
origin ftp.debian.org
500 http://ftp.debian.org/debian buster/main amd64 Packages
release v=10.7,o=Debian,a=stable,n=buster,l=Debian,c=main,b=amd64
origin ftp.debian.org
Pinned packages:
请问有什么帮助吗？
答案1
我使用这两个命令解决了这个问题：
sudo apt-get 安装 aptitude
sudo aptitude 安装 postgresql-11