# Problem upgrading to 7.12.1 **URL:** \ **Category:** Elasticsearch\ **Created:** [May 18, 2021, 11:52pm UTC](https://discuss.elastic.co/t/problem-upgrading-to-7-12-1/273353 "2021-05-18T23:52:44Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Jerry\_Hoffmeister](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@Jerry\_Hoffmeister](https://discuss.elastic.co/u/Jerry_Hoffmeister)\ **Post date:** [May 19, 2021, 12:16am UTC](https://discuss.elastic.co/t/problem-upgrading-to-7-12-1/273353/3 "2021-05-19T00:16:51Z")
For which this: > [@Elasticsearch won't start after 7.9.1 to 7.9.2 upgrade](https://discuss.elastic.co/t/elasticsearch-wont-start-after-7-9-1-to-7-9-2-upgrade/249878/2): > > I'm seeing the same thing on Ubuntu 18.04. A quick google of the error tells me it's related to this: Upgrades Infra/Packaging Upgrade the bundled JDK to JDK 15 [#62580](https://github.com/elastic/elasticsearch/pull/62580) UPDATE: So my automated approach of updating elasticsearch ignores any new versions of configuration files. Forcing reinstall using sudo apt install --reinstall -o Dpkg::Options::="--force-confask,confnew,confmiss" elasticsearch gave me an updated jvm.options that solves the issue. Here's the diff: # diff jvm.options jvm… appears to be the solution. --- _[View the full topic](https://discuss.elastic.co/t/problem-upgrading-to-7-12-1/273353)._