# Unable to install elasticsearch on ubuntu **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-monitoring\ **Created:** [March 30, 2025, 9:02pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565 "2025-03-30T21:02:24Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 9:02pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/1 "2025-03-30T21:02:24Z")
Hello, I'm back. So I'm on Ubuntu Desktop now and trying to install Elasticsearch on the local terminal. The problem, I get an error that says it can't find the package. Here is the error message I get ```auto (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ sudo apt install elasticsearch Error: Unable to locate package elasticsearch ``` Please let me know if you need additional information. Thank you ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [March 30, 2025, 9:09pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/2 "2025-03-30T21:09:57Z")
Hello, Did you follow the instructions in the [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/deb.html)? You need to add Elastic repository first. ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 9:36pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/3 "2025-03-30T21:36:17Z")
Thank you. Yes I was following the docs and when I tried start Elasticsearch with `sudo systemctl start elasticsearch.service` this is the output I got ```auto (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ sudo systemctl start elasticsearch.service ``` I think the server started successfully, but since there was no output, I wanted to make sure ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 10:12pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/4 "2025-03-30T22:12:26Z")
I ran this command as per the docs to verify elasticsearch is running `curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic:$ELASTIC_PASSWORD https://localhost:9200 ` and got this output ```auto stemctl start kibana.service (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic:$ELASTIC_PASSWORD https://localhost:9200 curl: (77) error setting certificate file: /etc/elasticsearch/certs/http_ca.crt ``` ---
**Author:** ![RainTown](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/raintown/32/140206_2.png) [@RainTown](https://discuss.elastic.co/u/RainTown)\ **Post date:** [March 30, 2025, 10:20pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/5 "2025-03-30T22:20:08Z")
Hi Corey > [@remoteconn-7891](#): > > I think the server started successfully Optimistic! Nothing wrong with optimism. There was no output pasted, just the command itself, but if the `sudo apt install elasticsearch` failed and you didn't address that, then it's not working. Can I suggest you go back to step one, and cut and paste every single command and its output. I also note your prompt starts with "(venv)" suggesting you setup some kind of python virtual environment. Thats typically fine, should not impact installing elasticsearch/kibana, but if you are inexperienced linux user it's possible your environment is a little messed up. Try this too: `$ apt list --installed | grep elasticsearch` or `$ apt list elasticsearch ` Output will contain something like this if Elasticsearch is properly installed: ```auto elasticsearch/now 8.17.3 amd64 [installed,local] ``` ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 10:24pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/6 "2025-03-30T22:24:11Z")
```auto (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ apt list --installed | grep elasticsearch WARNING: apt does not have a stable CLI interface. Use with caution in scripts. elasticsearch/stable,now 8.17.4 amd64 [installed] ``` I can also paste from the terminal, from the beginning of the elasticsearch installation command if you'd like ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 10:24pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/7 "2025-03-30T22:24:52Z")
Yeah I doubt Python virtual environment would have any kind of effect on elasticsearch. I didn't have an existing node, so the last command I wrote in the docs was `sudo systemctl start elasticsearch.service`. ---
**Author:** ![RainTown](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/raintown/32/140206_2.png) [@RainTown](https://discuss.elastic.co/u/RainTown)\ **Post date:** [March 30, 2025, 10:32pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/8 "2025-03-30T22:32:26Z")
that is much better. Now try your curl command with sudo as ```auto sudo ls -l /etc/elasticsearch/certs/http_ca.crt -rw-rw---- 1 root elasticsearch 1915 Feb 20 00:44 /etc/elasticsearch/certs/http_ca.crt ``` unless your local user is in the elasticsearch group, that file would not be readable as a normal user. should see something like: ```auto $ sudo curl --cacert /etc/elasticsearch/certs/http_ca.crt -u "${EUSER}:${EPASS}" https://localhost:9200 { "name" : "u2024", "cluster_name" : "elasticsearch", "cluster_uuid" : "xxxxx", "version" : { "number" : "8.17.3", "build_flavor" : "default", "build_type" : "deb", "build_hash" : "a091390de485bd4b127884f7e565c0cad59b10d2", "build_date" : "2025-02-28T10:07:26.089129809Z", "build_snapshot" : false, "lucene_version" : "9.12.0", "minimum_wire_compatibility_version" : "7.17.0", "minimum_index_compatibility_version" : "7.0.0" }, "tagline" : "You Know, for Search" } ``` btw equivalent but not needing sudo is probably `$ curl -k -u "${EUSER}:${EPASS}" https://localhost:9200` ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 11:27pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/9 "2025-03-30T23:27:27Z")
```auto (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ sudo ls -l /etc/elasticsearch/certs/http_ca.crt -rw-rw---- 1 root elasticsearch 1915 Feb 20 00:44 /etc/elasticsearch/certs/http_ca.crt [sudo] password for corey-james: -rw-rw---- 1 root elasticsearch 1915 Mar 30 15:28 /etc/elasticsearch/certs/http_ca.crt -rw-rw----: command not found ``` ---
**Author:** ![RainTown](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/raintown/32/140206_2.png) [@RainTown](https://discuss.elastic.co/u/RainTown)\ **Post date:** [March 30, 2025, 11:34pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/10 "2025-03-30T23:34:58Z")
something very weird about that output ... you pasted both the command and _my_ output into your terminal. Anyways, it was what I said, the file `/etc/elasticsearch/certs/http_ca.crt` is only readable by the elasticsearch user and those in the elasticsearch group, which probably does not include the (local) linux user `corey-james` put a sudo before your curl command and it should work. ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 30, 2025, 11:39pm UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/11 "2025-03-30T23:39:14Z")
I due apologize, like this? ```auto (venv) corey-james@corey-james-HP-Laptop-14-dq0xxx:~/Arborhub/MyProject$ sudo ls -l /etc/elasticsearch/certs/http_ca.crt -rw-rw---- 1 root elasticsearch 1915 Mar 30 15:28 /etc/elasticsearch/certs/http_ca.crt ``` ---
**Author:** ![remoteconn-7891](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/remoteconn-7891/32/141152_2.png) [@remoteconn-7891](https://discuss.elastic.co/u/remoteconn-7891)\ **Post date:** [March 31, 2025, 5:20am UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/12 "2025-03-31T05:20:03Z")
So I don't elasticsearch is running, as it doesn't work with `curl` ---
**Author:** ![RainTown](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/raintown/32/140206_2.png) [@RainTown](https://discuss.elastic.co/u/RainTown)\ **Post date:** [March 31, 2025, 5:47am UTC](https://discuss.elastic.co/t/unable-to-install-elasticsearch-on-ubuntu/376565/13 "2025-03-31T05:47:06Z")
> [@RainTown](#): > > put a sudo before your curl command I can’t really make that suggestion any simpler. Do you understand why you got the previous error: > [@remoteconn-7891](#): > > `curl: (77) error setting certificate file: /etc/elasticsearch/certs/http_ca.crt` ? It's because you, meaning user= corey-jame, do not have permissions to read the file. So you need run the curl commands with sudo. Or just use the other option, with -k, which doesn’t need sudo and doesn’t need the —cacert option. These are very basic Linux/shell topics, not really anything directly to do with elasticsearch. Sorry, but you are likely going to need to get much more familiar with Linux/shell topics to get too much further.