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+---- Thread: 32bit Java on 64bit OS ??? (/showthread.php?tid=1268)
32bit Java on 64bit OS ??? - tomekr - 06-05-2016
Hi All
Can I install 32 bit Jdk on 64 -bin Deoebian OS ?
I try to install openhab2 b3 but I have problem with Z-wave USB Stick ( I heard that is problem with serial devices in 64bit JDK )
I get
Linux debianpine64 3.10.101-4-pine64-longsleep #51 SMP PREEMPT Thu May 26 18:20:37 CEST 2016 aarch64 GNU/Linux
Regards
RE: 32bit Java on 64bit OS ??? - umiddelb - 06-05-2016
(06-05-2016, 05:41 AM)tomekr Wrote: Hi All
Can I install 32 bit Jdk on 64 -bin Deoebian OS ?
I try to install openhab2 b3 but I have problem with Z-wave USB Stick ( I heard that is problem with serial devices in 64bit JDK )
I get
Linux debianpine64 3.10.101-4-pine64-longsleep #51 SMP PREEMPT Thu May 26 18:20:37 CEST 2016 aarch64 GNU/Linux
Regards
Another reason to take the 32 bit Oracle JDK: It is way faster than the 64 bit Oracle JDK, see here:
Code:
# install the 64 bit Oracle JDK
sudo apt-get install oracle-java8-installer
# enable multiarch
sudo dpkg --add-architecture armhf
# install any 32 bit package in order to get the 32 bit libc, shared library loader, ... ,e.g.:
sudo apt-get install iperf:armhf
# install the 32 bit Oracle JDK in parallel
# download the armhf package (http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html)
sudo tar -C /usr/lib/jvm -xzvf <archive>
cd /usr/lib/jvm
sudo mv jdk1.8.0_91 jdk1.8.0_91.armhf
sudo mv java-8-oracle jdk1.8.0_91.arm64 && sudo ln -s jdk1.8.0_91.armhf java-8-oracleCheers
Uli
RE: 32bit Java on 64bit OS ??? - scurrier - 06-08-2016
FYI, the wiki now has images for openhab, running the 32-bit Oracle JVM.