java 6 on Linux and JPackage

I wanted a clean install that use alternatives. So I go to JPackage … the point is that they are a bit outdated on a few points :

• The recommended method “Rebuild the package” doesn’t fit anymore with Java 6. There is only a sun-compat packaeg and no “no-src” package.
• The repository for Fedora “ready for use” is using mirrors pointing to the 1.6 JPackage version that doesn’t features Java 6. You have to manually write the yum.d/jpackage.repo to use JPackage 1.7.
• The RPM for java-1.6.0-sun-compat is in the non-free section of 1.7 beta. (Note : there is a 5.0 that is supposed to match Java 5, but no 6.0 so far.

Anyway, I installed the JDK 6.0 for AMD64 from Sun and then the java-1.6.0-sun-compat and it went well. Installed Eclipse 3.2 with yum to try out. It seems OK so far.

Shortcuts and useful tricks

Don’t loose time with your mouse :

• Switch tabs on Firefox : Ctrl + Page up or Page Down
• Switch tabs on Konsole : Shift + Left or Right

Useful on Linux :

• Let say that you would like all file created in a directory dev to belong to group “users” instead of your personal group :

1. Change the dev group  to “users” chgrp users dev
2. Give him the set gid bit : chmod g+s dev
3. Check if it is OK : ll should show drwxrwsr-x …