java - Ubuntu删除失败的Java安装(已安装一半)

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我通过从java.com (1.8.0-71)下载RPM文件安装了Java，并使用Alien生成了我安装的.deb文件。它失败了，我无法删除它了。

如果我尝试使用apt-get，我总是会得到一条提示，我应该重新安装该软件包（如果那样简单的话）：

LC_ALL=C sudo dpkg --purge --force-all jre1.8.0-71
dpkg: warning: overriding problem because --force enabled:
dpkg: warning: package is in a very bad inconsistent state; you should
 reinstall it before attempting a removal
(Reading database ... 84902 files and directories currently installed.)
Removing jre1.8.0-71 (1.8.071-1) ...
/var/lib/dpkg/info/jre1.8.0-71.postrm: line 586: /usr/sbin/alternatives: No such file or directory
dpkg: error processing package jre1.8.0-71 (--purge):
 subprocess installed post-removal script returned error exit status 127
Errors were encountered while processing:
 jre1.8.0-71

当我尝试强制清洗时：

faustdonner@v22015113109829193:~$ sudo dpkg --force-all --purge jre1.8.0-71
dpkg: Warnung: Problem wird übergangen, weil --force angegeben ist:
dpkg: Warnung: Paket ist in einem sehr schlechten inkonsistenten Zustand - Sie sollten
es erneut installieren, bevor Sie es zu entfernen versuchen.
(Lese Datenbank ... 84902 Dateien und Verzeichnisse sind derzeit installiert.)
Entfernen von jre1.8.0-71 (1.8.071-1) ...
/var/lib/dpkg/info/jre1.8.0-71.postrm: Zeile 586: /usr/sbin/alternatives: Datei oder Verzeichnis nicht gefunden
dpkg: Fehler beim Bearbeiten des Paketes jre1.8.0-71 (--purge):
 Unterprozess installiertes post-removal-Skript gab den Fehlerwert 127 zurück
Fehler traten auf beim Bearbeiten von:
 jre1.8.0-71

包裹状态：

faustdonner@v22015113109829193:~/iRedMail-0.9.4$  dpkg -s jre1.8.0-71
Package: jre1.8.0-71
Status: purge reinstreq half-installed
Priority: extra
Section: alien
Installed-Size: 122630
Maintainer: faustdonner <faustdonner@v22015113109829193>
Architecture: amd64
Version: 1.8.071-1
Config-Version: 1.8.071-1
Conffiles:
 /usr/java/jre1.8.0_71/.java/.systemPrefs/.system.lock d41d8cd98f00b204e9800998ecf8427e
 /usr/java/jre1.8.0_71/.java/.systemPrefs/.systemRootModFile d41d8cd98f00b204e9800998ecf8427e
 /usr/java/jre1.8.0_71/.java/init.d/jexec 3a4104cd0a34b5e7e55433a78d9f7721
 /usr/java/jre1.8.0_71/lib/charsets.pack 05951e01ac743c82b30fd29269bda4cf
 /usr/java/jre1.8.0_71/lib/deploy.pack 5b3940dd00902468af3c38f7af733fe2
 /usr/java/jre1.8.0_71/lib/ext/jfxrt.pack 025c9f48e8accc9651338cc48a1e93b0
 /usr/java/jre1.8.0_71/lib/ext/localedata.pack 311294753566ba95d9cd78ee9d427feb
 /usr/java/jre1.8.0_71/lib/javaws.pack 1d6ea5448180750737c6fe71221f89b8
 /usr/java/jre1.8.0_71/lib/jsse.pack 50a27dfb6b47ca44f904a6597e376f30
 /usr/java/jre1.8.0_71/lib/plugin.pack 059b296ac6faa78cbe6b7148161c55b3
 /usr/java/jre1.8.0_71/lib/rt.pack 83ea5f918d52994d3494f628438eba2e
Description: Java Platform Standard Edition Runtime Environment
 The Java Platform Standard Edition Runtime Environment (JRE) contains
 everything necessary to run applets and applications designed for the
 Java platform. This includes the Java virtual machine, plus the Java
 platform classes and supporting files.
 .
 The JRE is freely redistributable, per the terms of the included license.
 .
 (Converted from a rpm package by alien version 8.90.)

第二行表示其处于非常糟糕的不一致状态。它尝试访问尚未创建的文件夹，因此我尝试执行的所有操作均失败。是否可以删除dpkg中的安装条目，就像从未安装过一样？我不在乎它是否超级干净，我只想能够再次使用apt-get。

找到了强制删除软件包的答案：

http://www.piprime.fr/1480/manually-remove-broken-package-debian-ubuntu/

最佳答案

您不应该那样安装Java。

首先，从此处获取tar.gz：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

然后执行以下步骤：

sudo apt-get purge openjdk-\*

sudo mkdir -p /usr/local/java

cd Downloads/

sudo mv jdk-8u72-linux-x64.tar.gz /usr/local/java/

cd /usr/local/java/

sudo tar xvzf jdk-8u72-linux-x64.tar.gz

sudo rm jdk-8u72-linux-x64.tar.gz

然后打开您的个人资料，并在末尾复制以下行：

须藤gedit / etc / profile

JAVA_HOME=/usr/local/java/jdk1.8.0_72
PATH=$PATH:$JAVA_HOME/bin
export JAVA_HOME
export PATH

最后执行以下步骤：

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_72/bin/java" 1

sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/java/jdk1.8.0_72/bin/javac" 1

sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/java/jdk1.8.0_72/bin/javaws" 1

sudo update-alternatives --set java /usr/local/java/jdk1.8.0_72/bin/java

sudo update-alternatives --set javac /usr/local/java/jdk1.8.0_72/bin/javac

sudo update-alternatives --set javaws /usr/local/java/jdk1.8.0_72/bin/javaws

请注意，“ cd Downloads /”部分可能因您的情况而有所不同，而且，您可以将其放置在所需的任何位置，而不仅仅是/ usr / local / java /-仅确保在所有位置使用相同的路径。

关于java - Ubuntu删除失败的Java安装(已安装一半)，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/35153689/