我有 Debian Wheezy 的 virtualbox。我正在尝试在其上安装 Postgresql 9.2。当我尝试按此指令执行此操作时,我有下一个:
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-9.2 : Depends: postgresql-common (>= 135~) but it is not going to be installed
Depends: ssl-cert but it is not installable
E: Unable to correct problems, you have held broken packages.
当我尝试安装 postgresql-common 时:
apt-get install postgresql-common
我得到了下一个:
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-common : Depends: ssl-cert (>= 1.0.11) but it is not installable
E: Unable to correct problems, you have held broken packages
当我尝试安装 ssl-cert 时:
apt-get install ssl-cert
我得到了下一个:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package ssl-cert is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'ssl-cert' has no installation candidate
我是 Linux 新手,请帮我安装 Postgresql 9.2