# Installing Elasticsearch 7.4 on a Raspberry Pi 4 (Raspbian Buster) **URL:** \ **Category:** Elasticsearch\ **Created:** [October 7, 2019, 10:25pm UTC](https://discuss.elastic.co/t/installing-elasticsearch-7-4-on-a-raspberry-pi-4-raspbian-buster/202599 "2019-10-07T22:25:59Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![glassman](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/glassman/32/55504_2.png) [@glassman](https://discuss.elastic.co/u/glassman)\ **Post date:** [October 8, 2019, 11:50pm UTC](https://discuss.elastic.co/t/installing-elasticsearch-7-4-on-a-raspberry-pi-4-raspbian-buster/202599/7 "2019-10-08T23:50:52Z")
Even after all this, the service still would not start. I now turned my attention to the elasticsearch.log located in /var/log/elasticsearch. There was an entry regarding an unsupported X-Pack: `[2019-10-08T02:14:13,852][ERROR][o.e.b.Bootstrap] [raspberrypi] Exception` `org.elasticsearch.ElasticsearchException: X-Pack is not supported and Machine Learning is not available for [linux-arm]; you can use the other X-Pack features (unsupported) by setting xpack.ml.enabled: false in elasticsearch.yml` `at org.elasticsearch.xpack.ml.MachineLearningFeatureSet.isRunningOnMlPlatform(MachineLearningFeatureSet.java:109) ~[?:?]` `at org.elasticsearch.xpack.ml.MachineLearningFeatureSet.isRunningOnMlPlatform(MachineLearningFeatureSet.java:100) ~[?:?]` `at org.elasticsearch.xpack.ml.MachineLearning.createComponents(MachineLearning.java:499) ~[?:?]` `at org.elasticsearch.node.Node.lambda$new$9(Node.java:450) ~[elasticsearch-7.4.0.jar:7.4.0]` `at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:271) ~[?:?]` `at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1654) ~[?:?]` `at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]` `at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]` `at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[?:?]` `at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]` `at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) ~[?:?]` `at org.elasticsearch.node.Node.(Node.java:453) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.node.Node.(Node.java:255) ~[elasticsearch-7.4.0.jar:7.4.0]` I wasn't sure if this would stop the service from starting, but I disabled it anyway with the following: **pi@raspberrypi** : **~ $** sudo nano /etc/elasticsearch/elasticsearch.yml `xpack.ml.enabled: false` I then tried to start the elasticsearch service again. It failed. When I checked the elasticsearch log, it now mentioned a fatal error about not being able to initialize class com.sun.jna.native: `[2019-10-08T02:20:22,875][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [raspberrypi] fatal error in thread [main], exiting` `java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native` `at org.elasticsearch.systemd.Libsystemd.lambda$static$0(Libsystemd.java:34) ~[?:?]` `at java.security.AccessController.doPrivileged(Native Method) ~[?:?]` `at org.elasticsearch.systemd.Libsystemd.(Libsystemd.java:33) ~[?:?]` `at org.elasticsearch.systemd.SystemdPlugin.sd_notify(SystemdPlugin.java:66) ~[?:?]` `at org.elasticsearch.systemd.SystemdPlugin.onNodeStarted(SystemdPlugin.java:74) ~[?:?]` `at java.util.ArrayList.forEach(ArrayList.java:1540) ~[?:?]` `at org.elasticsearch.node.Node.start(Node.java:768) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:273) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:358) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) ~[elasticsearch-cli-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.4.0.jar:7.4.0]` I read in [another discussion](https://discuss.elastic.co/t/elasticsearch-no-longer-works-under-systemd-7-4-0-on-centos-7-7-1908/201846) how this is usually in regard to the `/tmp` directory being mounted with `noexec`. In my case, the tmp directory isn't mounted, it's just a directory. Nevertheless, I decided to change where the tmp directory is located, change the permissions, and then add it to the systemd service: **pi@raspberrypi** : **~ $** sudo nano /etc/default/elasticsearch `# Elasticsearch tmp directory` `ES_TMPDIR=/usr/share/elasticsearch/tmp` **pi@raspberrypi** : **~ $** sudo mkdir /usr/share/elasticsearch/tmp && sudo chmod 777 -R /usr/share/elasticsearch/tmp **pi@raspberrypi** : **~ $** systemctl edit --full elasticsearch.service `[service]` `Environment=ES_TMPDIR=/usr/share/elasticsearch/tmp` This is where I'm stuck as it appear to have had no effect: `[2019-10-08T02:57:41,527][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [raspberrypi] fatal error in thread [main], exiting` `java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native` `at org.elasticsearch.systemd.Libsystemd.lambda$static$0(Libsystemd.java:34) ~[?:?]` `at java.security.AccessController.doPrivileged(Native Method) ~[?:?]` `at org.elasticsearch.systemd.Libsystemd.(Libsystemd.java:33) ~[?:?]` `at org.elasticsearch.systemd.SystemdPlugin.sd_notify(SystemdPlugin.java:66) ~[?:?]` `at org.elasticsearch.systemd.SystemdPlugin.onNodeStarted(SystemdPlugin.java:74) ~[?:?]` `at java.util.ArrayList.forEach(ArrayList.java:1540) ~[?:?]` `at org.elasticsearch.node.Node.start(Node.java:768) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:273) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:358) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) ~[elasticsearch-cli-7.4.0.jar:7.4.0]` `at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.4.0.jar:7.4.0]` `at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.4.0.jar:7.4.0]` I know this is a lot, but I tried to be as clear and concise as possible. If there's anything that anyone knows that may be helpful, I would love to hear it. I've tried my best with the limited skillset I have in this area, and I will continue to try, but it would be a major boon to have anyone help where they could. Thank you, and I look forward to hearing from the community members here! --- _[View the full topic](https://discuss.elastic.co/t/installing-elasticsearch-7-4-on-a-raspberry-pi-4-raspbian-buster/202599)._