Installing Java6 JDK on Ubuntu 12.04
转自：http://www.gaggl.com/2012/04/installing-java6-jdk-on-ubuntu-12-04/UPDATE: It appears that this PPArepo is currently broken (does not allow to get GPG key and has unmetdependencies on x84_64). It appears that the install on i386 systemsdoes work anyway if you ignore the GPG key error, but I wouldn’t installin that case as PPA installs are security risk enough without GPGerrors.
UPDATE: The reason the PPA does notwork is that it has been disabled by Ubuntu due to a licensing issuewith (not hard to guess) Oracle. Flexion.org have however created ascript (hosted on Github) to allow the automated update of Java 6 for those who still require it as a dependency.
wget https://github.com/flexiondotorg/oab-java6/raw/0.2.1/oab-java6.sh -O oab-java6.sh
chmod +x oab-java6.sh
sudo ./oab-java6.sh
Hat tip to Martin Wimpress from Flexion !
UPDATE: Thanks to a comment from Pierre-Yves Langloisthis seems to be the best method (uses the latest version of theFlexion script from Github rather than the version referenced above) sudo apt-get purge sun-java* #You need to do that if you want the mozilla plugin to work without conflict with java7 for instance.
mkdir ~/src
cd ~/src
git clone https://github.com/flexiondotorg/oab-java6.git
cd ~/src/oab-java6
sudo ./oab-java.sh
Then when its finished, install java:
sudo apt-get install sun-java6-plugin sun-java6-jre sun-java6-bin sun-java6-jdk
You can follow the installation process with:
tail -f ~/src/oab-java6/oab-java.sh.log
Note: If you do not need Java 6 it’s much safer to stick to the current Oracle Java 7> This is an update to the Java6 install on 11.10 since the previous PPA repository has not been updated. To install on Precise Pangolin you need to add the following repository
sudo add-apt-repository ppa:flexiondotorg/java
sudo apt-get update
sudo apt-get install sun-java6-jdk sun-java6-plugin
EDIT: since there seem to be manycomments about the repo not working here’s the manual process (since Ican’t find any working PPA that is actually maintained).
Download the Linux .bin install (32 or 64bit) from Oracle’s site Java Archive.
#change permissions to allow execute
chmod a+x jdk-6u-linux-i586.bin
#run the installer file
./jdk-6u-linux-i586.bin
Note: you obviously need to also maintain the Java6 updated manually.
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