# Kibana server is not ready yet - throw er; // Unhandled 'error' event
**URL:** https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879
**Category:** Kibana
**Created:** [April 8, 2019, 3:54pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879 "2019-04-08T15:54:11Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@Milton\_Sam\_Moses](https://discuss.elastic.co/u/Milton_Sam_Moses)
#### Post date: [April 8, 2019, 3:54pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/1 "2019-04-08T15:54:11Z")
Kibana wont start. Unable to determine the error.
-----error logs.
root@dev-platops-eng02:/usr/share/kibana/node\_modules# /usr/share/kibana/bin/kibana --verbose
events.js:174
throw er; // Unhandled 'error' event
^
Error: spawn /var/lib/kibana/headless\_shell-linux/headless\_shell EACCES
at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:240:19)
at onErrorNT (internal/child\_process.js:415:16)
at process.\_tickCallback (internal/process/next\_tick.js:63:19)
Emitted 'error' event at:
at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:246:12)
at onErrorNT (internal/child\_process.js:415:16)
at process.\_tickCallback (internal/process/next\_tick.js:63:19)
---
### Author:  [@joelgriffith](https://discuss.elastic.co/u/joelgriffith)
#### Post date: [April 8, 2019, 5:18pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/2 "2019-04-08T17:18:57Z")
Hey @Milton_Sam_Moses! In more recent versions of Kibana, we do a quick check on start-up to see if we can launch an installed headless\_chrome binary. This is used inside our reporting functionality inside of the reporting plugin. Are you running with a trial or other license?
If so, could you verify the ownership of the headless\_shell file that Kibana can't access:
`ls -l /var/lib/kibana/headless_shell-linux/headless_shell`
The `EACCES` error generally has to do with the node process not being able to execute that file.
---
### Author:  [@Milton\_Sam\_Moses](https://discuss.elastic.co/u/Milton_Sam_Moses)
#### Post date: [April 9, 2019, 9:08am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/3 "2019-04-09T09:08:52Z")
Hey, @joelgriffith. Thanks for your quick reply. I am running with trial.
root@dev-platops-eng02:~# ls -l /var/lib/kibana/headless\_shell-linux/headless\_shell
-rwxr-xr-x 1 kibana kibana 127410016 Apr 8 13:59 **/var/lib/kibana/headless\_shell-linux/headless\_shell**
---
### Author:  [@joelgriffith](https://discuss.elastic.co/u/joelgriffith)
#### Post date: [April 9, 2019, 9:01pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/4 "2019-04-09T21:01:31Z")
Looks like permissions are set properly. Out of curiosity are you running Kibana as a different user? I see you're logged in as root, what's the command you're using to start Kibana?
---
### Author:  [@Milton\_Sam\_Moses](https://discuss.elastic.co/u/Milton_Sam_Moses)
#### Post date: [April 10, 2019, 6:51am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/5 "2019-04-10T06:51:25Z")
sudo systemctl start kibana; tail -f /var/log/syslog
Hope this is the right way 🙈
---
### Author:  [@dudlo](https://discuss.elastic.co/u/dudlo)
#### Post date: [April 15, 2019, 6:53pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/6 "2019-04-15T18:53:27Z")
+1 here for the exact same symptoms. We installed a fresh 6.6.2 Kibana, pretty much empty. Then we upgraded to 7.0.0. We see the exact same symptoms. kibana.log file is clean and happy; kibana.stderr shows only that error quoted here. /var/lib/kibana/headless\_shell-linux/headless\_shell permissions same as here (only newer date and binary size). We are stuck.
---
### Author:  [@dudlo](https://discuss.elastic.co/u/dudlo)
#### Post date: [April 18, 2019, 5:32pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/7 "2019-04-18T17:32:11Z")
I uninstalled and wiped the version, then I installed 7.0.0 version fresh. Still, the same error and symptoms. Kibana does not run; same error.
---
### Author:  [@Kaldayr](https://discuss.elastic.co/u/Kaldayr)
#### Post date: [April 24, 2019, 12:30pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/8 "2019-04-24T12:30:47Z")
Hello guys,
Don't know if this issue has been addressed already , but here's what worked for me.
I had the same issue on my system (RHEL 7.4), and the origin was that the "/var" filesystem was flagged as "noexec" in the "/etc/fstab" system file:
/dev/mapper/rootvg-var\_lv /var ext4 defaults,nodev, **noexec** 1 2
So if you're in the same case, two options : update the /etc/fstab file and remove the option (implies a hard reboot of the server), or move the Kibana "data" folder (usually /var/lib/kibana if installed through yum) elsewhere, and then add the following line to the /etc/kibana/kibana.yml file :
path.data: /\
Hope this helps,
Regards.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 22, 2019, 12:30pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-throw-er-unhandled-error-event/175879/9 "2019-05-22T12:30:51Z")
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