# Kibana cannot read UUID file

**URL:** <https://discuss.elastic.co/t/kibana-cannot-read-uuid-file/252000>\
**Category:** Kibana\
**Created:** [October 14, 2020, 7:23am UTC](https://discuss.elastic.co/t/kibana-cannot-read-uuid-file/252000 "2020-10-14T07:23:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ayush\_Mathur](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ayush_mathur/32/77134_2.png) [@Ayush\_Mathur](https://discuss.elastic.co/u/Ayush_Mathur)\
**Post date:** [October 14, 2020, 7:23am UTC](https://discuss.elastic.co/t/kibana-cannot-read-uuid-file/252000/1 "2020-10-14T07:23:41Z")

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Hi,

I'm trying to upgrade the Elastic Stack from 7.6.2 to 7.9.1 but for some reason Kibana is not starting.  
The error logged during startup is:

`Kibana cannot read the uuid file, please make sure server.uuid is set in kibana.yml and it has sufficient privileges for read/write.`

Any idea what's going on, I tried setting `path.data` and the location has `og+rw` with ownership as `kibana:kibana`?

Best Regards,  
Ayush

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**Author:** ![markov00](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/markov00/32/33316_2.png) [@markov00](https://discuss.elastic.co/u/markov00)\
**Post date:** [October 14, 2020, 9:09am UTC](https://discuss.elastic.co/t/kibana-cannot-read-uuid-file/252000/2 "2020-10-14T09:09:52Z")

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Hi @Ayush_Mathur  
just to check: are you running the kibana process with the `kibana` user?  
if so, please check the permission for the `kibana` user on that directory and the `uuid` file in that directory. if you have `og+rw` permission, if I'm not wrong, it means that only group and user have permission but not the user, try to add the read/write permission to the user also

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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:** [November 11, 2020, 9:10am UTC](https://discuss.elastic.co/t/kibana-cannot-read-uuid-file/252000/3 "2020-11-11T09:10:20Z")

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