我正在尝试安装 Hadoop 2.7.3。在 Elementary OS（我相信是 Ubuntu）上按照建筑.txtHadoop 文件附带的。
该文件表明我需要通过以下步骤安装 Oracle JDK 1.7：
$ sudo apt-get purge openjdk*
$ sudo apt-get install software-properties-common
$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java7-installer
一切正常，直到最后一步，它退出并显示一条错误消息，我不知道该怎么做（抱歉，如果粘贴太长；我很乐意编辑它，但不知道相关内容是什么）：
--2017-05-26 10:58:06-- http://download.oracle.com/otn-pub/java/jdk/7u80-
b15/jdk-7u80-linux-x64.tar.gz Resolving download.oracle.com
(download.oracle.com)... 199.117.103.169, 199.117.103.171
Connecting to download.oracle.com
(download.oracle.com)|199.117.103.169|:80... connected. HTTP request
sent, awaiting response... 302 Moved Temporarily Location:
https://edelivery.oracle.com/otn-pub/java/jdk/7u80-b15/jdk-7u80-linux-x64.tar.gz
[...]
[following]
--2017-05-26 10:58:06-- http://download.oracle.com/otn-pub/java/jdk/7u80-b15/jdk-7u80-linux-x64.tar.gz?AuthParam=1495814405_54d4699c133b9ceee2666c152616ece6
Connecting to download.oracle.com
(download.oracle.com)|199.117.103.169|:80... connected.
HTTP request sent, awaiting response... 404 Not Found 2017-05-26
10:58:07 ERROR 404: Not Found.
download failed
Oracle JDK 7 is NOT installed.
dpkg: error processing package oracle-java7-installer (--configure):
subprocess installed post-installation script returned error exit
status 1 dpkg: dependency problems prevent configuration of
oracle-jdk7-installer: oracle-jdk7-installer depends on
oracle-java7-installer; however: Package oracle-java7-installer is
not configured yet.
我估计
- 404 是主要问题 - 它正在寻找文件但找不到它们
所以我的问题是
这是真的吗？这里的障碍是什么？
我该如何解决它，或者我必须走另一条路？
（我正在关注白Hadoop - 权威指南以了解整体方法。)