# I broke ES while upgrading from 2.3 to 5.6 :(
**URL:** https://discuss.elastic.co/t/i-broke-es-while-upgrading-from-2-3-to-5-6/192544
**Category:** Elasticsearch
**Created:** [July 27, 2019, 11:31pm UTC](https://discuss.elastic.co/t/i-broke-es-while-upgrading-from-2-3-to-5-6/192544 "2019-07-27T23:31:54Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@tryptych](https://discuss.elastic.co/u/tryptych)
#### Post date: [July 27, 2019, 11:31pm UTC](https://discuss.elastic.co/t/i-broke-es-while-upgrading-from-2-3-to-5-6/192544/1 "2019-07-27T23:31:54Z")
I'm on CentOS7, using Elastic Search for Graylog. I'm a rookie, learning as I go. I upgraded ES from 2.3 to 5.6 using yum. When I start ES now it fails and doesn't give me any useful feedback.
> [root@locker2 ~]# systemctl status elasticsearch
> ● elasticsearch.service - Elasticsearch
> Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
> Active: failed (Result: exit-code) since Sat 2019-07-27 19:22:44 EDT; 5min ago
> Docs: [http://www.elastic.co](http://www.elastic.co)
> Process: 1902 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID\_DIR}/elasticsearch.pid --quiet -Edefault.path.logs=${LOG\_DIR} -Edefault.path.data=${DATA\_DIR} -Edefault.path.conf=${CONF\_DIR} (code=exited, status=1/FAILURE)
> Process: 1898 ExecStartPre=/usr/share/elasticsearch/bin/elasticsearch-systemd-pre-exec (code=exited, status=0/SUCCESS)
> Main PID: 1902 (code=exited, status=1/FAILURE)
>
> Jul 27 19:22:38 locker2 systemd[1]: Starting Elasticsearch...
> Jul 27 19:22:38 locker2 systemd[1]: Started Elasticsearch.
> Jul 27 19:22:44 locker2 systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
> Jul 27 19:22:44 locker2 systemd[1]: Unit elasticsearch.service entered failed state.
> Jul 27 19:22:44 locker2 systemd[1]: elasticsearch.service failed.
**How can I troubleshoot this? How do I get ES to produce some useful logs? Where are they located? Is there a debug mode?**
Thanks in advance
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### Author:  [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)
#### Post date: [August 2, 2019, 12:05pm UTC](https://discuss.elastic.co/t/i-broke-es-while-upgrading-from-2-3-to-5-6/192544/2 "2019-08-02T12:05:51Z")
Hi,
please see our [documentation when installing Elasticsearch from the rpm package](https://www.elastic.co/guide/en/elasticsearch/reference/5.6/rpm.html). Among other things you'll find the [directory layout](https://www.elastic.co/guide/en/elasticsearch/reference/5.6/rpm.html#rpm-layout) documented there which says that the default path for the log files is in `/var/log/elasticsearch`.
Daniel
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 30, 2019, 12:05pm UTC](https://discuss.elastic.co/t/i-broke-es-while-upgrading-from-2-3-to-5-6/192544/3 "2019-08-30T12:05:51Z")
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