Em Dom 30 Nov 2008, Linuxguy123 escreveu: > # alternatives --config java > > There are 2 programs which provide 'java'. > > Selection Command > ----------------------------------------------- > * 1 /usr/lib/jvm/jre-1.6.0-openjdk/bin/java > + 2 /usr/lib/jvm/jre-1.5.0-gcj/bin/java > > So it thinks I have 2 versions of Java. > > Here is the first: > > # java -version > java version "1.6.0_0" > IcedTea6 1.4 (6b12-Fedora-10) Runtime Environment (build 1.6.0_0-b12) > OpenJDK Server VM (build 10.0-b19, mixed mode) > > Here is the second: > > # java -version > java version "1.5.0" > gij (GNU libgcj) version 4.3.2 20081105 (Red Hat 4.3.2-7) > > However, I actually have 3 versions of Java, because I installed the > Sun Java from a Sun rpm: > > # rpm -ql jre > /usr/java/jre1.5.0_15/CHANGES > /usr/java/jre1.5.0_15/COPYRIGHT > /usr/java/jre1.5.0_15/LICENSE > /usr/java/jre1.5.0_15/README > /usr/java/jre1.5.0_15/THIRDPARTYLICENSEREADME.txt > /usr/java/jre1.5.0_15/Welcome.html > /usr/java/jre1.5.0_15/bin > /usr/java/jre1.5.0_15/bin/ControlPanel > /usr/java/jre1.5.0_15/bin/java > > If I test it it works fine. > > # /usr/java/jre1.5.0_15/bin/java -version > java version "1.5.0_15" > Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_15-b04) > Java HotSpot(TM) Server VM (build 1.5.0_15-b04, mixed mode) > > So I move it to /usr/lib/jvm and run again: > > alternatives --config java > > There are 2 programs which provide 'java'. > > Selection Command > ----------------------------------------------- > *+ 1 /usr/lib/jvm/jre-1.6.0-openjdk/bin/java > 2 /usr/lib/jvm/jre-1.5.0-gcj/bin/java > > The Sun Java doesn't show up. > > /usr/lib/jvm looks like this: > > ls -al > total 204 > drwxr-xr-x 5 root root 4096 . > drwxr-xr-x 183 root root 139264 .. > drwxr-xr-x 3 root root 4096 java-1.5.0-gcj-1.5.0.0 > drwxr-xr-x 3 root root 4096 java-1.6.0-openjdk-1.6.0.0 > lrwxrwxrwx 1 root root 21 jre -> /etc/alternatives/jre > lrwxrwxrwx 1 root root 27 jre-1.5.0 -> > /etc/alternatives/jre_1.5.0 drwxr-xr-x 7 root root 4096 > jre1.5.0_15 > lrwxrwxrwx 1 root root 26 jre-1.5.0-gcj -> > java-1.5.0-gcj-1.5.0.0/jre > lrwxrwxrwx 1 root root 27 jre-1.6.0 -> > /etc/alternatives/jre_1.6.0 lrwxrwxrwx 1 root root 30 > jre-1.6.0-openjdk -> > java-1.6.0-openjdk-1.6.0.0/jre > lrwxrwxrwx 1 root root 25 jre-gcj -> /etc/alternatives/jre_gcj > lrwxrwxrwx 1 root root 29 jre-openjdk > -> /etc/alternatives/jre_openjdk > > How do I get the Sun java to be the default Java, without doing a 24 > step build that Googling finds ? You must register the new java alternative with the alternatives command first. Just type in as root in a terminal window: alternatives --install /usr/bin/java java /opt/jre1.6.0/bin/java 3 alternatives --config java And select the one you want to be the default. Replace "/opt/jre1.6.0/bin/" with the path where you have decompressed Sun's java binaries. I've read a long time ago that we shouldn't install Sun's Java RPM in Fedora, because it would overwrite some files of GCJ. When you update GCJ the next time, it will overwrite back the Sun's files. I don't know for sure if this was correct or if it is still the case but maybe, just to be safe, you should download the non-rpm package from Sun and decompress it manually in /opt or other directory you like. If any one knows if it's still not recommended to install Sun's Java RPM package, please let us know. []'s Marcelo -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
