# Filebeat startup failed

**URL:** <https://discuss.elastic.co/t/filebeat-startup-failed/137173>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [June 25, 2018, 12:58am UTC](https://discuss.elastic.co/t/filebeat-startup-failed/137173 "2018-06-25T00:58:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![weilinqwe](https://avatars.discourse-cdn.com/v4/letter/w/6a8cbe/32.png) [@weilinqwe](https://discuss.elastic.co/u/weilinqwe)\
**Post date:** [June 25, 2018, 12:58am UTC](https://discuss.elastic.co/t/filebeat-startup-failed/137173/1 "2018-06-25T00:58:33Z")

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I use filebeat to collect file log. the filebeat version is 6.2.2, the os version is Redhat Enterprise 5.1.  
when start filebeat, it failed. the log showed: Exiting: open /proc/sys/kernel/hostname: errno 530. I guess it failed when get beat.hostname value from file /proc/sys/kernel/hostname. But I can cat /proc/sys/kernel/hostname and get the value successfully. after reading the reference, I cannot cancel the beat.hostname to bypass the error.  
how do I solve it. I tried the latest filebeat 6.30, also failed. isnt the OS version too low？ Any Clue？

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**Author:** ![weilinqwe](https://avatars.discourse-cdn.com/v4/letter/w/6a8cbe/32.png) [@weilinqwe](https://discuss.elastic.co/u/weilinqwe)\
**Post date:** [June 25, 2018, 5:45am UTC](https://discuss.elastic.co/t/filebeat-startup-failed/137173/2 "2018-06-25T05:45:24Z")

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mostly because of low os version. in anothor machine with redhat enterprise 5.5, filebeat can startup successfully.

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**Author:** ![jsoriano](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jsoriano/32/27920_2.png) [@jsoriano](https://discuss.elastic.co/u/jsoriano)\
**Post date:** [June 25, 2018, 10:48am UTC](https://discuss.elastic.co/t/filebeat-startup-failed/137173/3 "2018-06-25T10:48:34Z")

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Hi @weilinqwe and welcome 🙂

As you mention the OS version can be too low, [we only support RHEL starting on 6.X](https://www.elastic.co/support/matrix). I'm afraid that it can be hard to make Beats work on older versions due to lack of support in Go for old kernel versions, see this report for example: [http://grokbase.com/t/gg/golang-nuts/145c1w9srw/go-nuts-errno-530-from-os-open-on-rhel-5](http://grokbase.com/t/gg/golang-nuts/145c1w9srw/go-nuts-errno-530-from-os-open-on-rhel-5)

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 23, 2018, 10:48am UTC](https://discuss.elastic.co/t/filebeat-startup-failed/137173/4 "2018-07-23T10:48:46Z")

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