你好，我试图在Ubuntu 20.04上安装PostgreSQL，但是当我执行第一个命令以创建文件存储库配置时：
第一个月
我得到bash: lsb_release: command not found。
它可能是有用的指出，我安装了Python 3.6.0，然后我安装了Python 3.8.5之前postgresql，所以我认为这可能是麻烦的原因。
在这里，我发布了一些我执行的命令及其输出，可以帮助更好地理解实际问题。

• sudo apt-cache policy lsb-release*

lsb-release:
  Installed: (none)
  Candidates:  (none)
  Version Table:
     11.1.0ubuntu2 -1
        100 /var/lib/dpkg/status

字符串

• sudo apt-get install lsb-release*

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package lsb-release 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 "lsb-release" does not have a candidate for installation

型

• LSB_release*

bash: lsb_release: command not found

型
请让我知道，如果我应该提供进一步的信息，可能是有用的，以找出什么是问题的根源。
先谢谢你了