linux - 如何更新 CPAN perl 模块

Question

我正在尝试安装一些 perl 模块，但每次都会显示此消息

  New CPAN.pm version (v2.00) available.
  [Currently running version is v1.960001]
  You might want to try
    install CPAN
    reload cpan
  to both upgrade CPAN.pm and run the new version without leaving
  the current session.

我试过

install CPAN
reload cpan

与

pi@raspbmc:~$ sudo perl -MCPAN -e shell
Terminal does not support AddHistory.

cpan shell -- CPAN exploration and modules installation (v1.960001)
Enter 'h' for help.

cpan[1]> install CPAN

但是结果是

Going to read '/root/.cpan/sources/authors/01mailrc.txt.gz'
............................................................................DONE
Going to read '/root/.cpan/sources/modules/02packages.details.txt.gz'
  Database was generated on Mon, 28 Oct 2013 23:41:06 GMT
  HTTP::Date not available
  ..............
  New CPAN.pm version (v2.00) available.
  [Currently running version is v1.960001]
  You might want to try
    install CPAN
    reload cpan
  to both upgrade CPAN.pm and run the new version without leaving
  the current session.


...............pi@raspbmc:~$ 

版本还是1.960001

Answer 1

接下来的过程

1. kuz1@banana:~$ sudo perl -MCPAN -e shell
2. cpan[1]> 安装 CPAN
3. cpan[2]> 重新加载 cpan

在装有 Ubuntu 14.04 的 BANANA Pi 单板计算机上为我工作。